Answer:
muscle stem cells
Explanation:
Unipotent Cells Unipotent stem cells can self-renew and differentiate into only one specific cell type and form a single lineage such as muscle stem cells, giving rise to mature muscle cells and not any other cells [44–47] .
6.
Water rises in the xylem tubes due to
photosynthesis.
respiration
gravitation pull.
transpiration pull.
Tul
My answer to the question is Transpiration pull.
HEEEELP PLZ who invented the Binomial nomenclature
Answer:
Carl Linnaeus invented the binomial nomenclature
Answer:
Carolus Linnaeus or Carl von Linné (born in Älmhult, 23 May 1707 - died in Uppsala, 10 January 1778 at the age of 70) was a Swedish scientist who laid the foundation of biological nomenclature. He is known as "the father of modern taxonomy" and is also one of the fathers of modern ecology.
what type of environment would you most likely find fish species 1?
Answer:
Different species of fish are adapted for different habitats: rocky shores, coral reefs, kelp forests, rivers and streams, lakes and ponds, under sea ice, the deep sea, and other environments of fresh, salt, and brackish water. Some fish are pelagic: they live in the open ocean.
Explanation:
what's the cell wall of a onion made up of?
Answer:
Unlike animal cells (such as cheek cells) the cell wall of an onion and other plants are made up of cellulose, which protects the cell and maintains its shape.
Answer:
cell membrane,cytoplasm,nucleus and a large Vacuole.
Explanation:
An onion is a multicellular(consisting of many cells)plant organism.As in all plant cells,the cell of an onion peel consists of a cell wall.
Select the correct answer.
Why might two elements possess similar chemical properties?
OA. They belong to the same group of the periodic table.
OB. They have the same physical state.
OC. They have similar physical properties.
OD. They belong to the same period of the periodic table.
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Answer:
A. They belong to the same group
Explanation:
Elements in the same group have same properties, because they have the same number of valence electrons.
Equilibrium is when the concentration is the same throughout an entire system. Explain how a cell reaches equilibrium in all three types of solutions (hypertonic, hypotonic, and isotonic).
It is pertinent to understand what hypertonic, hypotonic, and isotonic solution means before setting out to explain how a cell reaches equilibrium in each type of solution.
A hypertonic solution is one whose solute concentration is higher than that of the sap of a cell that is immersed in it.A hypotonic solution is one with the same solute concentration as that of the sap of the cell immersed in it.An isotonic solution has a lower solute concentration than that of the sap of the cell immersed in it.In biological systems, water molecules move by osmosis from the region of higher water potential or lower concentration of solutes to the region of lower water potential or higher concentration of solute. An equilibrium is reached when there is no net movement of water between two sides. Hence;
A cell placed in a hypertonic solution will lose water to the surrounding solution until an equilibrium is reached. This means that such a cell will end up shrinking (wilting) or even dying due to loss of water from the cell sap.A cell placed in a hypotonic solution will gain water from the surrounding solution until there is no net movement of water anymore. Such a cell might become turgid or even burst out its cell content.A cell placed in an isotonic solution will neither gain nor lose water because the cell sap and the surrounding solution have equal solute concentrations.More about osmosis here: https://brainly.in/question/1213189
Answer:
A cell placed in a hypertonic solution will lose water to the surrounding solution until an equilibrium is reached. This means that such a cell will end up shrinking (wilting) or even dying due to loss of water from the cell sap.
A cell placed in a hypotonic solution will gain water from the surrounding solution until there is no net movement of water anymore. Such a cell might become turgid or even burst out its cell content.
A cell placed in an isotonic solution will neither gain nor lose water because the cell sap and the surrounding solution have equal solute concentrations.
a break in which of the following would cause a secrion of bone to die
Answer:
Osteonecrosis can be caused by disease or by severe trauma, such as a fracture or dislocation, that affects the blood supply to the bone. Osteonecrosis can also occur without trauma or disease.
Explanation:
Mark me a brainlistType 2 diabetes (insulin-independent diabetes) is a non-infectious disease. If not treated this disease is characterised by large fluctuations in the concentration of glucose in the blood Maltase is an enzyme that completes the digestion of starch in humans Molecules of maltase are bound to the microvilli of epithelial cells in the small intestine Ascorbate is a drug used in the treatment of type 2 diabetes. Molecules of ascorbic have a very similar shape to that of the substrate for maltase. (1) Explain how ascorbase acts to inhibit these membrane-bound enzymes.
Answer: Ascorbase a form of ascorbate, a drug used in the treatment of type 2 diabetes which acts to inhibit maltase a membrane bound enzyme that completes the digestion of starch in the human body.this inhibition is done through;
- By preventing substrates from binding to the active site therefore forming few enzyme complex substrates.
- it also inhibits the enzymes by binding to the active sites of that enzyme.
- it also does so by reacting slowly and also because it has a complementary shape to the active site of the enzyme maltase.
1. The Hawaiian Islands are examples of islands that formed over a hotspot. Based on this information, which of the following processes formed the Hawaiian Islands? (2 points) Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled. Tectonic movement forced certain segments of Earth's crust downward and other segments upward in jagged chunks. One tectonic plate moved beneath another plate at a subduction zone, causing the rock to melt and rise above Earth's surface. Segments of Earth's crust bent and doubled over, and moving wind and water gradually shaped the rock into gently sloping domes.
Answer:
The correct answer is - Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled.
Explanation:
The Hawaiian Islands are the chain of eight major islands situated in U.S. of Hawaii. These are formed over a hot spot. About 75 million years ago such hotspot took place in the center of the Pacific Plate.
There are hot spot due to the volconic activity and in the moving over the tectonic plate of a subduction zone. Volcanic activity and overriding of plates that cause rising magma by melting the moving down plates whice leads to volcanic arcs formation. The magma that rose gradually cooled down and become solid over the time. It is an example of a large seamount and island chain created by hot-spot volcanism.
Thus, The correct answer is - Melted rock called magma rose through holes in Earth's crust and gradually solidified as it cooled.
Three living species X, Y, and Z share a common ancestor T, as do extinct species U and V. A grouping that consists of species T, X, Y, and Z (but not U or V) makes up Three living species X, Y, and Z share a common ancestor T, as do extinct species U and V. A grouping that consists of species T, X, Y, and Z (but not U or V) makes up a polyphyletic group. an ingroup, with species U as the outgroup. a paraphyletic group. a monophyletic clade. a valid taxon.
Answer:
Explanation:
Creative Bioarray has developed and validated the 3T3 neutral red uptake photoxicity assay, erythrocyte hemolysis assay and a phototoxicity screening assay using 3D human epidermis model.
https://dda.creative-bioarray.com/pharmacology-models.html
Which is the FALSE statement about this blood pressure measurement? 147/92 A. 92 is the diastolic number. B. 147 is the systolic number. C. This is a high blood pressure measurement. D. This is a normal blood pressure measurement.
Answer:
The false statement is - option D.
Explanation:
The lower value is known as diastolic number which is the pressure in the arteries when the heart takes rest in between two consecutive heart beats. Diastolic value shows the pressure of arteries when heart fills with blood.
The upper value or number is known as the systolic number, it is the pressure value of arteries of an individual during the contraction of hear. The normal blood person of a health person is range from 80/60mmhg to 120/90 mmhg, above this range is considered as high blood pressure.
Thus, the false statement is - option D.
Which of the following best supports the endosymbiont theory that present-day eukaryotic cells are descendants of a successful symbiotic relationship between a host cell and an engulfed prokaryote?
A. Chloroplasts and mitochondria replicate in a similar manner as some prokaryotes.
B. Chloroplasts are necessary for photosynthesis reactions in plant and bacteria cells.
C. Mitochondria and chloroplasts are able to produce ATP molecules to be used by the cell.
D. Mitochondria use proteins and nutrients produced in other regions of the eukaryotic cell.
Answer:
A. Chloroplasts and mitochondria replicate in a similar manner as some prokaryotes
Explanation:
Endosymbiont theory deals with how eukaryotic organisms were formed from prokaryotic organisms. Prokaryotes such as Bacteria were documented as the first form of life on earth through fossil records before eukaryotes came into light.
Organelles such as Chloroplasts and mitochondria replicate in a similar manner as some prokaryotes. This supports the endosymbiont theory that present-day eukaryotic cells are descendants of a successful symbiotic relationship between a host cell and an engulfed prokaryote
which phase of water is the most dense and which is the least dense
Answer:
The ice form of water is most dense, and the vapor form of water is the least dense.
Explanation:
The molecular cohesion in ice is stronger than in liquid or vapor, forcing the molecules of water to remain closely bonded making it dense. The vapor form of water is weaker that liquid and ice since the molecules are nearly free roaming or loosely bonded making it not very dense.
Cheers.
The most dense phase of water is liquid water, and the least dense phase of water is ice.
As water freezes and transitions from a liquid to a solid state, the water molecules arrange themselves in a regular and more structured pattern, forming a crystal lattice.
This arrangement leads to an increase in the space between the water molecules compared to the more closely packed molecules in the liquid phase.
As a result, the density of ice is lower than that of liquid water.
This is due to the hydrogen bonding between water molecules.
When water freezes, the molecules slow down, and the hydrogen bonds stabilize, resulting in the formation of ice crystals with a less dense arrangement.
As the temperature decreases below 4 °C, the density of water decreases due to the expansion that occurs when it freezes into ice.
Thus, the most dense phase of water is liquid water, and the least dense phase of water is ice.
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wirte 2 slogans on 'need to conserve nature?
Answer:
Tree planting is the safest solution to pollution. Save the earth, save our environment. Don't be cruel, conserve your fuel.
Answer:
Explanation:
1. Save plants, save nature
2. Don't let mother nature become a "once upon time"
You notice that your aunt, who has generalized anxiety disorder, is often restless and has trouble concentrating. Which area of her brain is most likely responsible for her responses to anxiety-provoking events? A. Amygdala B. Hypothalamus C. Anterior cingulate cortex D. Cingulate gyrus
Answer:
Amygdala
Explanation:
Generalized anxiety disorder (GAD occurs when an individual experiences excessive and continuous worry and anxiety about certain things ,It is caused by over activation of the region of the brain that mediate response to fight and flight stimulus and fear,the amygdala.
Its symptoms are difficulty with concentrations, overthinking ,indecision, irregular sleep patterns.
Two brain circuits transmitted sensory stimuli of fear or danger in the brain to two regions of the brain,
1. the peripheral cerebral cortex for voluntary decisions
2. the Amygdala for involuntary emotional decision.
The amygdala is concerned with how the body reacts to the effects of the stimuli in the immediate environments, the interactions of the stimuli with the emotions of the subject, and the involuntary response .
To respond to the stimuli of fear. The amygdala stimulates the hypothalamus.The latter activate the cardiovascular and breathing centre .Hence,adrenaline is released into the blood stream.The increases involuntary response to anxiety,which gives a fast response..The cerebral cortex response takes time to relay response.
Amygdala, stores memories of all emotions, fear, and anxiety. In patients with this disorder, the Amygdala is sensitive and had been adapted to the memory of fear and anxiety stored.Therefore, every slight normal event which should give any danger is over reacted to by the amygdala with fear or flight response, This triggers the two brain circuits to give anxiety-provoking events.
Intake of medication, Behavioural therapy are the mode of treatments.
Is a ping pong ball a nonliving or living thing and why
Answer:
A ping pong ball is nonliving because it does not have a brain or living cells. It is plastic.
what are sex hormones?why are they named so? state their function.
Answer:
Sex hormones or hormones of the reproductive organs are certain cells in the reproductive organs that produce hormones.
The testis produces testosterone,the male sex hormone,and the ovaries produces oestrogen and progesterone, the female sex hormones.
In a sexually mature male,testosterone influences sexual behaviour, and together with FSH,regulates sperm production in the seminiferous tubules of the testes.
Sexually matured females undergo a regular 4-week reproductive or menstrual cycle during which a mature egg is released.This cycle is regulated by oestrogen and progesterone. During pregnancy, progesterone inhibits egg production (ovulation),brings about the development of the placenta and prevents the uterus from contracting....I hope this answers your question... Thank you for the question.
Which amino acid chain will be formed by the condons shown below?
Answer:
D. Gly Lys Cys
Explanation:
Which function is specific to the neuron? It generates electrochemical signals so that the body can react to stimuli. It produces antibodies to destroy pathogens for protection purposes. It breaks down chemical substances into a form that is usable by the body. It delivers oxygen to the cells of the body for metabolic processes.
Answer:
It generates electrochemical signals so that the body can react to stimuli.
Explanation:
This is the job of the nervous system; it allows our body to react to stimuli. Neurons are what allows us to feel if something is touching our body (or if we are touching something) by sending synapses all the way to the brain at an incredibly fast pace.
Answer:
It generates electrochemical signals so that the body can react to stimuli.
Explanation:
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Food chains represent
1 point
the movement of energy through the environment
the movement of energy from a consumer to producer
the loss of energy in the ecosystem
the importance of DNA
In an ________ solution, red blood cells ________. Group of answer choices hyposmotic, lose water and shrivel isomotic, have a normal shape isosmotic, swell and may burst hyperosmotic, have a normal shape isosmotic, lose water and shrivel
[tex] \large{ \boxed{ \bf{ \color{skyblue}{The \: correct \: question:}}}}[/tex]
Q. In an ________ solution, red blood cells ________. Group of answer choices:
Hyposmotic, lose water and shrivel Isomotic, have a normal shape ✔️Isosmotic, swell and may burst Hyperosmotic, have a normal shape Isosmotic, lose water and shrivel[tex] \large{ \boxed{ \bf{ \color{violet}{The \: correct \: answer:}}}}[/tex]
In an isosmotic solution, red blood cells have normal shape.
Option B
Explanation:-Osmosis : The movement of the solvent or water molecules from a solution of their higher concentration to a solution of lower concentration through a semipermeable membrane.
❍ Depending upon the osmotic concentration, There are three types of solution and their result when cell is keot inside them:
Hyposmotic (Water enters, Swells up)Isosmotic(Equal flow, No change)Hyperosmotic(Water comes out, shrinkage)━━━━━━━━━━━━━━━━━━━━
a student hypothesized that pillar coral eat and digest zooxanthellae. which of these observations would cause the student to change this hypothesis
Answer:
the zooxanthellae in a pillar coral's body are alive
What does the word Photosynthesis mean?
A. Release of energy through the breakdown of Glucose.
B. Creating photographs.
C. Taking apart with light.
D. Putting together with light.
Answer:
A
Explanation:
release of energy through the breakdown of glucose
The release of energy through the breakdown of Glucose means Photosynthesis.
PhotosynthesisPhotosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in carbohydrate molecules, such as sugars and starches, which are synthesized from carbon dioxide and water – hence the name photosynthesis, from the Greek phōs "light", and synthesis "putting together" Most plants, algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere and supplies most of the energy necessary for life on Earth.
Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centers that contain green chlorophyll (and other colored) pigments/chromophores. In plants, these proteins are held inside organelles called chloroplasts, which are most abundant in leaf cells, while in bacteria they are embedded in the plasma membrane. In these light-dependent reactions, some energy is used to strip electrons from suitable substances, such as water, producing oxygen gas.
Learn more about photosynthesis
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