Answer:
Marine ecosystems are aquatic environments with high levels of dissolved salt, such as those found in or near the ocean.
Explanation:
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Unlike birds and mammals, fish and reptiles grow their entire lives. What feature of their bone development is different from that of humans?
The feature of bone development of fish and reptiles which is different from that of humans is that structures such as jaw is formed from several bones being joined together while humans have only a single bone forming it.
What is a Bone?This is referred to as the living tissues which make up the skeleton and are important as they protect and provide structural integrity to the cells of the body.
The jaw of fish and reptiles are formed from several bones being joined together while humans have only a single bone forming this type of structure which is one of the differences.
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what would happen if the food quality varied and the prey were not able to assimilate large quantities of defensive compounds?
It is possible to measure bottom-up links with flow webs, top-down linkages with ingestion/production webs, and trophic position using the secondary production of species in multi-species assemblages.
Who are the food consumers?The organisms that eat the producers are the principal consumers.. They are numerous and often modest in size. Herbivorous animals are the main consumers (vegetarians). The organisms known as secondary consumers are carnivores that consume the prime consumers.
What kind of connection exists between a food product and a product?The relationship between the consumer and the food product is fundamental to the growth of food products, so it is crucial that it be taken into account at every stage of the process of changing eating habits. Understanding the consumer/product interaction can be done on three different levels: as an individual product, as a meal, and as an eating pattern.
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the tissue layer between the muscularis mucosae and muscularis externa of the digestive tract is the .
The tissue layer between the muscularis mucosae and muscularis externa of the digestive tract is the myenteric plexus.
The innermost tunic of the wall is known as the mucosa, or mucous membrane layer. It lines the lumen of the digestive tract. The mucosa is made up of epithelium, a layer of lamina propria, a loose layer of connective tissue, and the muscularis mucosa, a thin layer of smooth muscle. In some places, the mucosa forms folds that increase its surface area. The mucosa's specific cells secrete hormones, digestive enzymes, and mucus. The mucosa is the route that other glands' ducts take to reach the lumen. The epithelium in the mouth and anus is stratified squamous tissue, which provides the necessary thickness for abrasion protection. For secretion and absorption, the stomach and intestines comprise a thin, simple columnar epithelial layer.
The submucosa, a thick layer of loose connective tissue, is present around the mucosa. This stratum also contains neurons, lymphatic vessels, and blood arteries. This layer might contain glands. An inner circular layer and an outside longitudinal layer make up the two layers of the smooth muscle that moves the digestive tract. The myenteric plexus divides the two muscular layers. Above the diaphragm, the adventitia—a connective tissue—makes up the outermost layer of the digestive tract. Serosa is the term for the area below the diaphragm.
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upus is an autoimmune disorder. which of the qualities would you expect to be a symptom of lupus? b cells binding to antigens on host cells and targeting their degradation an increase in ciliary action of the esophagus increased blood clotting if the skin is cut increased phagocytosis of bacterial pathogens in the body
Systemic lupus erythematosus, sometimes known as lupus, is an autoimmune disorder that may result in organ damage, fever, skin rashes, and joint pain. Most often, lupus affects females between the ages of 15 and 45.
What signs and symptoms might a lady have of lupus?Fatigue, hair loss, sun sensitivity, painful and swollen joints, an inexplicable fever, skin rashes, and renal issues are typical symptoms. For SLE, there isn't a single test. Typically, your doctor may inquire about your symptoms, family history, and personal health history. Additionally, your doctor will do a few laboratory tests.
What happens if lupus is not treated?It can increase your risk of acquiring life-threatening conditions including a heart attack or stroke if left untreated. Frequently, lupus There are no outward signs of nephritis. This does not imply that the condition is risk-free, though, as the kidneys may still be suffering harm.
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I need some help with some questions for a weekly recap quiz! If u don't know the answer please do not answer! Brainly for the best answer! Thanks yall for helping me!
Mutations that can contribute to a change in the characteristics of a species over time include:
a mutation in an egg cell; option Ba mutation in a sperm cell; option DIf a human cell has more or less than the correct number of chromosomes, a likely result is that it can cause mutations in the DNA of the human; option A.
What are mutations?
Mutations are changes that occur in the sequence of nucleotides in a DNA molecule.
Mutations may occur in the coding regions known as genes or non-coding regions of the DNA.
A mutation may or may not result in changes in the gene product that is coded for by the DNA.
The mutation may have deleterious effects or may enhance the chances of survival for a given organism.
Mutations may or may not also be passed on to offspring by parents.
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human enzymes digest proteins in which areas of the body? multiple choice mouth and stomach mouth and small intestine small and large intestines stomach and small intestine
Protein digestion starts at stomach and mainly proteins are digested in the small intestine which has all the enzymes.
Amino acids are used to make dietary proteins. Protein from food can be used by the body for energy, muscular building, or integration into substances containing nitrogen. Protein is first broken down into smaller peptides in the stomach by an enzyme called pepsin, and then it is further broken down in the small intestine by pancreatic and intestinal lining enzymes. These peptides are subsequently converted into dipeptides and tripeptides, which can pass through the lining of the intestine. Any of these processes that are changed or aberrant might lead to disorders of protein digestion.
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physical properties of matter ability to be stretched into wire without breaking
Answer: Ductility
Explanation:
The term that is ductility is the Capacity of a material to deform permanently that is stretch, bend, or it can be spread in response to stress. And therefore we can say that it fractures easily. When a material specimen is stressed then it plastically deforms we can see elasticity at first that is above a certain deformation which is known as the elastic limit of the deformation becomes permanent.
The materials that are easily deformed even without breaking when they are put under mechanical pressure are considered to be malleable. The materials that are easily deformed when they are put under tensile stress are considered to be ductile.
The word malleable comes from the latin medieval malleability which itself came from the original Latin malleare that is meaning "to hammer."
Since these materials do not break while it is being deformed that they can be forced into different shapes or sheets that are thin. This can be done by hammering as well as rolling or pressing.
A common very example for this is of a material that is malleable is gold which is often compressed into a leaf of gold for use in art as well as architecture, jewelry, and even food. There are other malleable metals which include iron, and copper, aluminum, silver, and lead, as well as the transition metal zinc at certain temperatures. There are many materials that are very malleable and are also very ductile, and it generally leads to an exception which is with low ductility and high malleability.
They are closely related to the concept of malleability that is said to be ductility. While the term that is malleability has to do with compressive stress or mechanical pressure and ductility relates to tensile stress or mechanical stretching.
Something we notice is ductile which is sometimes also known as tractile that can be easily stretched or drawn out into a thin wire. Copper is a very good ductile material and is a very good example of both malleability and ductility which is able to be pressed and rolled into sheets as well as stretched into wires.
The metals are often mixed as we mix the alloys to improve their physical properties. There is high-tensile steel which is an example of an alloy that has higher ductility than any of its component metals. And it is said to be often used in airplanes and cars and other engineering applications.
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When cells have a higher concentration of electrolytes outside the cell than inside, water will flow.
When cells have a higher concentration of electrolytes outside the cell than inside, water will flow into the cell until the concentration equalized.
What are electrolytes ?In a solution An electrolyte is a substance when molten, ionizes and conducts electricity, it can be either weak or strong electrolyte.
A weak electrolyte is defined as a solution in which only small fraction of the dissolved solute exists as ions where as in strong electrolyte complete electrolyte dissolves in water.
Weak electrolyte has medium level of conductivity, Strong electrolyte Contains a complete solute, so it has strong conductivity and Non-electrolyte has little or no conductivity.
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alleles are: question 30 options: different versions of a particular gene. different types of deoxyribonucleic acid (dna). defective chromosomes that are missing a few key genes. chemicals or other environmental agents that are known to cause birth defects.
Answer:
Explanation:
alleles is one of two or more versions of DNA sequence (a single base or a segment of bases) at a given genomic location.
a researcher is studying the effects of a new drug on the endomembrane system. she notices the golgi apparatus is not receiving any proteins and that it is not able to ship any proteins. what part of the endomembrane system was probably affected by this new drug?
Smooth endoplasmic reticulum (SER) is that part of the endomembrane system which is probably affected by this new drug
The smooth endoplasmic reticulum is involved in several metabolic activities. It produces steroids, phospholipids like those found in plasma membranes, and lipids. Smooth endoplasmic reticulum is overproduced in cells that emit these substances, such as cells in the testes, ovaries, and skin oil glands.
Proteins obtained from the ER are further processed and sorted in the Golgi apparatus, or Golgi complex, where they are eventually transported to lysosomes, the plasma membrane, or secretion. As was already mentioned, the Golgi apparatus also produces sphingomyelin and glycolipids.
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Which of these would most likely happen
if people caught and ate most of the
bass?
A. The insect populations would increase.
B. The bluegill population would decrease.
C. The algae, zooplankton, insect, and
bluegill populations would all be
affected.
D. The bluegill population would increase,
but the other organisms would not be affected.
An estimated 5% of bass taken during the competition perish, and a further 23% perish after being released, for a total mortality of 28%. Thus, option C is correct.
What results in decline in number of bass?22 percent of these fish are re-caught after being released. They will experience a further 28 percent mortality rate if they are discovered in another tournament.
According to research, small mouth populations can suffer from angler harvest, flooding, and drought, with the latter having the most negative effects.
Therefore, There would be more minnows in the water. Small fish consume algae in a straightforward food chain, bigger fish eat the smaller fish, and bears eat the bigger fish.
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which part of the nervous system is responsible for relaying information from the brain to the muscles so they can walk across the room and pick something up?
Somatic nervous system is responsible for relaying information from the brain to the muscles so they can walk across the room and pick something up.
Your body's movements are initiated by and under the control of your somatic nervous system. Nearly all voluntary muscular actions are controlled by the system, which is also in charge of processing sensory data that is received from external inputs like hearing, touch, and sight. This tells us that somatic nervous system would be responsible for the movement involved in walking across the room or other.
The peripheral nervous system, which enables the brain and spinal cord to receive and transmit information to other parts of the body, includes both the somatic and autonomic nervous systems. In order to control voluntary movements and reflex arcs, the somatic nervous system connects the central nervous system to the body's muscles.
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test in which anticoagulant is added to a venous blood sample and the distance cells fall in the test tube over time is determined: a.erythrocyte sedimentation rate b.coagulation time c.hematocrit d.wbc differential e.red blood cell morphology
Test in which anticoagulant is added to a venous blood sample and the distance cells fall in the test tube over time is determined hematocrit.
To determine if you have a blood clotting condition, a D-dimer test is utilised. Deep vein thrombosis (DVT), a blood clot that forms deep within a vein, is one of these illnesses. Though they can occur anywhere on the body, these clots typically affect the lower legs.
What about hematocrit?Anemia is defined as a hematocrit level below the normal range, indicating that the individual has insufficient red blood cells. An elevated hematocrit level, or an excess of red blood cells, can point to polycythemia or erythrocytosis. A hematocrit that is greater than usual can reveal: Dehydration.a condition that causes your body to overproduce red blood cells, like polycythemia vera. Heart or lung disease The results of your hematocrit test are given as a numerical value. This represents the proportion of red blood cells in your blood. If your hematocrit test result is 42, for instance, this suggests that 42% of your blood is made up of red blood cells, with the remaining blood being made up of white blood cells, platelets, and blood plasma. The hematocrit calculates the volume of red blood cells in relation to the volume of all the blood (red blood cells and plasma). Men's normal hematocrit ranges from 40 to 54%, whereas women's ranges from 36 to 48%. The amount of red blood cells in a person's blood is measured by their hematocrit. Anemia is one disorder that is indicated by low red blood cell counts. Although cancer is more frequently associated with low haemoglobin levels, some malignancies can actually increase haemoglobin levels.This includes a rare kind of blood cancer called polycythemia vera, liver cancer.Learn more hematocrit about here:
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blindness could result from damage to which cortex and lobe of the brain? (a) visual cortex in the frontal lobe. (b) visual cortex in the temporal lobe. (c) sensory cortex in the parietal lobe. (d) visual cortex in the occipital lobe. (e) cerebral cortex in the occipital lobe.
Blindness results from damage to: (d) visual cortex in the occipital lobe.
Visual cortex is the cortical region of the brain that receives, integrates and processes signals from the retina. It therefore helps in image formation. It largely consists of myelinated axons to fasten the process of signal transmission.
Occipital lobe is present at the posterior portion of the forebrain. It is located between the parietal and the temporal lobe. It is the primary vision processing portion of the brain. It is also the smallest in size. The lobe rests upon a thick tissue called tentorium cerebelli. It is also involved in some function other than vision.
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What is the primary advantage of using phase comparison in an interference microscope?.
The main primary advantage of using phase comparison in microscopy is that the living cells can be examined in their natural state without previously being killed and stained with dyes or other heavy metals
Explanation:
The technique has the advantage of making it possible to visualize cell organelles and structures that are invisible in bright fields this makes it easier to distinguish the organelles.
It is suitable for living cells when they are being analyzed in the lab unlike other techniques which require the specimen to be dead, it also good for studying and interpreting thin specimens this is because of its high contrast resolution ability which is the ability to distinguish in detail the distance at which two distinct points of a specimen are located
the phase shifts are invisible but they come visible in brightness variations
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CASE STUDY Explain the relationship among homeostasis, defective mitochondria, and the symptoms caused by LHON.
The relationship among homeostasis, defective mitochondria and the symptoms caused by LHON is the following:
The power center of the cell, the mitochondria are also involved in homeostasis, the maintenance of a stable internal environment even in the face of variations in the external environment.
Mitochondrial diseases can be caused by inherited mutations in mitochondrial DNA or defects in the proteins responsible for regulating mitochondrial division, affecting the body's homeostasis.
Leber's Hereditary Optic Neuropathy (LHON) is the first disease associated with a mutation in the mitochondrial genome, specifically it produces the specific degradation of neurons involved in sending information from the eye to the brain (RGC).
This disease is caused almost entirely by three mutations in mitochondrial DNA (mtDNA).
The first symptoms are blurred vision, with unilateral or bilateral onset, which over time affects and / or worsens in both eyes, with loss of visual acuity and color vision.
Vision loss is painless and is caused by degeneration of the optic nerve, specifically of the retinal ganglion cells (RGC).
Therefore, we can conclude that LHON is a disease associated with a mutation in the mitochondrial genome affecting the body's homeostasis.
What is composed of cells that produce hormones and secrete them into the bloodstream?.
Endocrine glands are made up of cells that release hormones into the bloodstream.
Endocrine glands are also known as ductless glands as they release certain chemical substances called as hormones directly into the bloodstream in the body. These hormones in turn, act on certain specific target organs in order to produce a certain effect.
Endocrine glands vary in shape as well as size. The important ones are the pituitary gland, thyroid gland, parathyroid gland, adrenal or supra-renal glands, pineal gland, etc. Hormones act as chemical messengers in the body. A hormonal imbalance in the body may lead to health-related problems such as obesity, elevated blood pressure or hypertension, etc.
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A bird that preys on moths is introduced to the habitat with moths and trees like the ones shown below.
A white moth and a black moth are shown.
What will most likely happen to the population of moths in this habitat?
Answer:They will minimize/the population will go down.
Explanation: The moths are used to not being eaten and a new bird that eats them as their main source of food is introduced, then the population will go down as they will be feasted upon
1. As time passes, the universe becomes
1 more organized
2 less organized
3 simpler
4 smaller
Answer:
more organized
Explanation:
it would be more organized because of new inventions
Changes in ________ structure and function have been demonstrated in adolescents who are either at-risk or have been diagnosed with various mood and/or anxiety disorders.
Changes in amygdala structure and function have been demonstrated in adolescents who are either at-risk or have been diagnosed with various mood and/or anxiety disorders.
What does amygdala
The amygdala is the part in the anatomy of the brain that is associated with the processes of emotion, behavior, and memory.
This part of the brain is shaped like an almond. The amygdala is located deep in the temporal lobe, the part of the cerebral cortex in the middle of the brain.
In this central area of the brain, the amygdala is next to the hippocampus, the part of the brain associated with memory formation.
Along with the hippocampus, the amygdala is part of the limbic system.
The limbic system itself is a structure in the brain involved in behavioral and emotional responses.
In addition to the hippocampus and amygdala, the limbic system also consists of the thalamus, hypothalamus, and basal ganglia.
Structure and function of the amygdala
The amygdala is located on two sides of the brain, namely the right and left brain.
The right side is involved with negative emotions, while the left is associated with negative and positive emotions.
Each hemisphere of the amygdala has three parts. Each part is connected to other brain structures that have different functions. the three parts, namely:
- The medial (middle) subnucleus group associated with the olfactory bulb and cortex (related to olfactory function or the sense of smell).
- The basolateral group (bottom and sideways) is connected to some of the cerebral cortex, especially the frontal lobes.
- Groups of middle and anterior (front) nuclei that connect with the brainstem, hypothalamus, and sensory structures.
The connection between the amygdala and these brain structures links cognitive functions (thinking, learning, and remembering) with physiological functions of the body (such as breathing, heartbeat, touch, or smell).
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a nuclear medicine study used to diagnosis pernicious anemia is: group of answer choices coombs antiglobulin test. packed-cell volume. monospot. schilling test.
Pernicious anemia is diagnosed by a schilling test. It is a test of vitamin B12 (cyanocobalamin) absorption by complexing with intrinsic factors.
What is a schilling test? How it was performed?
It is a classic test used clinically to distinguish between gastric and ileal causes of vitamin B12 deficiency.
It is performed by administering a small oral dose of radiolabeled vitamin B12 and, simultaneously within one or two hours, a large intramuscular flushing of nonradiolabeled vitamin B12. The unlabeled B12 saturates vitamin B12 carriers, thus radioactive vitamin B12 absorbed by the intestine is excreted in the urine.
If less than 7% of the administered dose is recovered in the urine, vitamin B12 malabsorption is confirmed.
Let us discuss other options:
Coombs test or antiglobulin test is used to detect antibodies that can bind the antigen on the surface of RBC but cannot agglutinate them.A Packed cell volume test (hematocrit) is used to evaluate the percentage of blood that is made up of red blood cells.The Monospot test is a latex agglutination test used to detect specific heterophile antibodies produces by the immune system in response to EBV infection.Hence schilling test is used to detect pernicious anemia caused due to the deficiency of vitamin B12 (Cyanocobalamin).
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Explain the difference between DNA replication and protein synthesis. When does each process occur? Why does each process occur? Which process happens more often? Explain your reasoning.
these are true and false questions
1.during translation information on an RNA strand is used to assemble a protein
2.RNA exits the nucleus through osmosis
3.messenger RNA picks up amino acids in the cytoplasm and brings them to a ribosome for assembley into a protein
4. ribosomes use the information in RNA to assemble proteins
Answer:
1. True
2. False
3. False
4. True
Explanation:
1. DNA is transcribed into RNA which is then translated into protein. RNA contains the information required to produce proteins.
2. No, RNA exits the nucleus through a nuclear pore complex with the help of export receptors.
3. Amino acids are bound to tRNA not mRNA.
4. The RNA contains the information required to create proteins. Ribosomes mediate and catalyze the reaction to produce an amino acid chain using the information in mRNA.
how can you increase system efficiency
You increase system efficiency to create the smooth running system
The energy efficiency of a system or device that convert energy is measured by the ratio of the amount of useful energy put out by the system means output energy to the total amount of energy that is put in means input energy by useful output energy as a percentage of the total input energy allow you to achieve more with less get things done in less time and allow you to scale your operation
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reduced bone and muscle mass and light- producing organs are adaptations most likely to be seen in fish living in the:
Reduced bone mass as well as muscle and light-producing organs are the most likely adaptations seen in fish living in the deep sea.
Deep-sea fish is a collective term for fish that live in the dark below the surface of sunlit waters, that is, below the epipelagic or photic zone in the oceans. By far the lantern fish are the most abundant deep-sea fish. Other marine fish include flashlightfish, cutting sharks, bristlemouth, anglerfish, viperfish, and several species of eelpout.
Organs that emit weak blue, yellow, or green light can be used to communicate. Lanternfish are very important to marine ecosystems, with whales, dolphins, and sharks too.
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Identify at least 3 ways the river changed because of wolves
I need this ASAP! (No answer choices...)
after 6 rounds of pcr, a single double-stranded dna molecule would have become how many double-stranded copies?
DNA copies increase exponentially over time.
DNA molecules are created in total after "n" PCR cycles, which equals 2 square n..
Thus, 2 square 6= 64 is the total amount of DNA molecules generated after "6" PCR cycles.
What about DNA?The molecule found inside cells that carries the genetic material necessary for an organism to develop and perform.This data is often passed from one generation to the next thanks to DNA molecules.Humans and nearly all other species carry their genetic information in DNA, also mentioned as deoxyribonucleic acid.The DNA of a privateer is often found in almost all of their cells.Nucleotides are chemical building units that structure DNA.A phosphate group, a sugar group, and one of four different nitrogen bases make up these building components.Nucleotides are joined together into chains, with the phosphate and sugar groups switching places, to form strands of DNA.It contains information needed to form proteins, which are other big molecules.These instructions are dispersed throughout 46 lengthy structures called chromosomes that are found inside each of your cells.Numerous smaller pieces of DNA, mentioned as genes, structure these chromosomes.Today, DNA has three separate purposes: genetic, immunological, and structural, all of which differ greatly from one another and depend in different ways on the bases and the sugar phosphate backbone.DNA encodes the knowledge required to supply proteins, which is the main connection between DNA and proteins.DNA, however, isn't a protein.Long strands of nucleotides structure DNA.Learn more about DNA here:
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use your lesson notes to explain the results for the taste sensations in each of the regions of your tongue?
Microvilli, tiny hairs on the surface of taste buds, are incredibly sensitive. The brain receives information from those small hairs about how something tastes, telling you if it is sweet, sour, bitter, or salty.
Who defines taste buds?On the tongue, taste buds are comparatively tiny sensory organs that communicate with the brain about flavor.
These organs have nerve endings that metabolize the food you eat chemically.
Due to their extensive taste buds, people are able to distinguish between flavors that fall into the following five categories: sweet, sour, salty, bitter, and savory.
According to the tongue map, the flavor of the tongue is sweet at first, salty and sour in the middle, and bitter in the end. In the field of taste research, it may be the most well-known symbol.
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NEED ANSWER PLS DUE SOON
Red blood cells in seawater would shrivel up because there is more salt concentration than human blood cells can handle.
Sorry I can't answer for 3 but the thyroid gland is the main organ for hormones so it definitely has something to do with that
Which of the following statements concerning
platelets is INCORRECT. Platelets:
The statement that is incorrect about platelets is that the life span of platelets is between 30 and 60 days.
The correct option A.
What are platelets?A platelets is described a tiny, disc-shaped piece of cell that is found in the blood and spleen. Platelets are pieces of very large cells in the bone marrow called megakaryocytes. They help form blood clots to slow or stop bleeding and to help wounds heal.
When platelets are low, dangerous internal bleeding can occur when your platelet count falls below 10,000 platelets per microliter. Though rare, severe thrombocytopenia can cause bleeding into the brain, which can be fatal.
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The complete question:
Which of the following statements about platelets is INCORRECT?
A
The life span of platelets is between 30 and 60 days.
B
Platelets are essential for the clotting process.
C
Platelets contain serotonin, ADP, calcium, and PDGF.
D
Platelets are fragments of a larger cell called a megakaryocyte.
E
The formation of platelets is regulated by the hormone thrombopoietin