One evidence supporting punctuated equilibrium?

Answers

Answer 1

Answer: it indicated macroevolution will typically involve cladogenesis, rather than anagenetic modification of populations

Explanation:


Related Questions

What occurred in the red bacterial cell in generation 2? (click on the one correct answer.)

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The mutation occurs in the red bacterial cell in generation 2.

An alteration in the nucleic acid sequence of an organism's, virus's, or extrachromosomal DNA is referred to as a mutation. DNA or RNA can be found in the viral genome.

Environmental elements known as mutagens are what trigger mutations. Radiation, chemicals, and pathogenic agents are examples of mutagens. Mutations may occur naturally spontaneously.

Red blood cells are impacted by thalassemia, a genetic blood condition. A change in the cell that produces hemoglobin is the cause of thalassemia. Anemia is brought on by the mutation's disruption of hemoglobin formation, which results in low hemoglobin levels and a rapid loss of red blood cells.

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When teaching a client with diabetes about monitoring for episodes of hypoglycemia:_________

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When teaching a client with diabetes about monitoring for episodes of hypoglycemia, the nurse should tell the client to check for symptoms like feeling shaky, weakness, cold, headache, nausea.

What is hypoglycemia?Hypoglycemia refers to a situation where blood glucose level is less than a given standard value.Glucose is the main source of food for the body and a person suffering from hypoglycemia may feel hungry, nauseous, and weak.Mainly hypoglycemia is related to diabetes but it may also occur due to other diseases and medications.To prevent the symptoms of hypoglycemia, one should consume high sugar foods and drinks.A person with hypoglycemia has blurred vision, confusion, drowsiness, difficulty in concentrating.If the level of blood glucose is low for a long time, it may even lead to seizures, coma and eventually death.

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When the ______4. _______ muscles relax and the _______5. ______ relaxes and moves back to its dome-like position

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Answer:

4. External intercostal, 5. Diaphragm.

Explanation:

Context is needed for a more accurate answer, but based off of the parameters of the provided question, I tried my best to infer the muscles based on the shape (dome-like).

This answer might be correct, as the diaphragm it is said to be "a large, dome-shaped muscle that contracts rhythmically and continually..."

Glycolysis requires an initial energy investment, which allows for the production of relatively larger quantities of atp during?

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Glycolysis requires an initial energy investment, which allows for the production of relatively larger quantities of ATP during Substrate-level phosphorylation

The process of glycolysis starts with a single glucose molecule, which has a six-carbon ring structure, and finishes with two molecules of pyruvate, a three-carbon sugar. Two separate phases of glycolysis exist. Energy is utilized to alter the first step of the glycolysis process so that the six-carbon sugar molecule can divide equally into two three-carbon pyruvate molecules. ATP and nicotinamide-adenine dinucleotide (NADH) are created during the second phase of glycolysis.Substrate-level phosphorylation is the direct transfer of a high-energy phosphate group from a phosphorylated intermediate metabolic molecule in an exergonic catabolic pathway, which results in the generation of ATP from ADP.

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What is the visceral mass that every mollusk has

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The visceral mass that every mollusk has are internal organs, digestive tract, paired kidneys and reproductive organs

What are invertebrates?

Invertebrates are animals which do not have backbone.

Some invertebrates phyla include:

PoriferaCoelentrata/CnidarianAnnelidaPlatyhelminthes e.t.c

So therefore, the visceral mass that every mollusk posses are the internal organs, digestive tract, paired kidneys and reproductive organs

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Hyperventilation can result in _______. Hyperventilation can result in _______. too much carbon dioxide in the blood respiratory acidosis too much oxygen in the blood too little carbon dioxide in the blood

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Hyperventilation can result in too little carbon dioxide in the blood and is denoted as option D.

What is Hyperventilation?

This is the process which involves an individual breathing quickly thereby resulting in more exhalation than inhalation.

This leads to the presence of too little carbon dioxide in the blood and results in respiratory alkalosis.

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The enteric division of the ans is found in the __________ of the body

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The enteric division of the ANS is found in the gastrointestinal tract of the body.

Here ANS stands for the autonomic nervous system which can be described as a collection of motor neurons that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal.

It has three divisions: sympathetic, parasympathetic, and enteric.

Out of three, the enteric division has two plexuses: the myenteric (Auerbach) which is usually detected in the GI tract, and the submucosal (Meissner) which is usually observed in the submucosa.

The sympathetic division is located in intermediolateral columns, or lateral horns, of the spinal cord whereas the parasympathetic division is located in the head.

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The presence of precancerous changes in the cells that make up the inner lining of the cervix is known as:

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The presence of precancerous changes in the cells that make up the inner lining of the cervix is known as cervical dysplasia.

Cervical dysplasia, also known as cervical intraepithelial neoplasia (CIN) can be described as a precancerous condition characterized by abnormal cell division which is usually observed in the surface lining of the cervix or endocervical canal, the opening between the uterus and the vagina.

Women under the age of 30 years are at higher risk of getting this disease which is usually discovered through a pap test. Mild cervical dysplasia sometimes resolves without treatment but proper maintenance of diet and hygiene is required with proper follow-up and regular check-ups whereas moderate and severe cases require proper treatment and removal of abnormal cells through surgery to reduce the risk of cervical cancer.

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During the relaxation period, Ca2 is re-sequestered into the sarcoplasmic reticulum by Group of answer choices Ca2 ATPases T-tubules Ca2 channels voltage gated channels

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During the relaxation period, Ca2 is re-sequestered into the sarcoplasmic reticulum by Ca2+ AtPAse.

During relaxation, Ca2+ is actively transported by the Ca2+ ATPase, from the cytosol into the sarcoplasmic reticulum.Each time we move a muscle, trillions of myosin motors work together to make that movement possible. Calcium ions are used by our muscle cells to coordinate this significant molecular effort.Muscles can unwind using the calcium pump following this frantic burst of calcium-induced contraction. The sarcoplasmic reticulum's membrane contains the pump. Sometimes it is so abundant that it may account for 90% of the protein there. By returning calcium ions to the sarcoplasmic reticulum with the help of ATP, the muscle is able to relax by lowering the calcium concentration surrounding the actin and myosin filaments. Similar pumps can be found in the cell membrane of the majority of cells, and calcium ions are also used for signaling inside other cells.

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Ca2 is re-sequestered into the sarcoplasmic reticulum during the relaxation period by Ca2+ ATPase.

What do you mean by sarcoplasmic reticulum?

Similar to the smooth endoplasmic reticulum in other cells, the sarcoplasmic reticulum (SR) is a membrane-bound structure found in muscle cells. The SR's primary job is to hold calcium ions (Ca2+). The concentration of calcium ions within a cell is 10,000 times lower than the concentration of calcium ions outside the cell, ensuring that calcium ion levels are kept relatively constant.

Fish cardiomyocytes have various types of sarcoplasmic reticulum (SR): junctional SR(jSR). free SR (fSR)

The sarcolemmal network or the t-tubular network is peripherally coupled with jSR paperwork. Rows of proteins referred to as "feet" are seen between the 2 membranes in peripheral connections where the jSR profile coincides with the sarcolemma or t-tubule. These proteins function as ryanodine receptor channels that are launched by Ca2+. Because fSR is not closely connected to any other membrane system, it may be found anywhere in the cardiomyocyte.

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On entering the lungs, the primary bronchi divide to form smaller bronchi called:_____.

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On entering the lungs, the primary bronchi divide to form smaller bronchi called lobar.

The secondary lobar bronchi or just lobar bronchi are the primary subdivision of the main (or number one) bronchi. Like the number one and tertiary bronchi, they're undertaking airways that are covered by way of cartilage. The left foremost bronchus offers rise to two secondary bronchi: the left upper lobe bronchus.

The right important bronchus subdivides into three lobar bronchi, even as the left important bronchus divides into two. The lobar bronchi (additionally referred to as secondary bronchi) divide into tertiary bronchi, each of which supplies air to a one-of-a-kind bronchopulmonary segment.

The segmental bronchi divide into many smaller bronchioles that divide into terminal bronchioles, after which into respiration bronchioles, which divide into 2 to 11 alveolar ducts.

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Explain the sequence of events that occur in secondary succession as you would to a friend who had not yet learned about the process

Answers

The sequence of events that occur in secondary succession include:

Pioneer speciesIntermediate speciesClimax community.

What is Secondary succession?

This usually occurs when the primary succession has been disrupted through factors such as wildfire etc.

In this scenario, the existing vegetation is present which gives rise to the species listed above.

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In reviewing his learning and memory lecture, Mike recalled that he said "this is an 'excited' area of humanity," which made no sense. The embarrassment overcame him so intensely that he had to call Dr. Baraban and confess his errors, lamenting at how he was a fraud. Mike looks back on this and cringes at his wretched display of low self-confidence. What types of memory were implicated in this entire episode?

Answer choices:
Declarative
Emotional
Modal
Motor

Answers

Declarative memory type of memory was implicated in this entire episode.

Declarative memory

One of the two types of long-term memory is explicit or declarative memory. Procedure memory is the other. Declarative memory is the consciously retained remembering of experiences, events, and knowledge applied to daily life. Semantic and episodic memory are two subsets of declarative memory that store facts that are consciously known. Independent of previous experiences, semantic memory is the process of storing broad knowledge. For instance, being familiar with phone numbers, foods, capitals, and particular words and definitions. The experiences, abilities, and life events that are remembered episodically are specific. Bicycling, going to a concert, and focusing on a particular person are some examples. According to this theory, the different memory kinds are interconnected and mutually supportive.

In reviewing his learning and memory lecture, Mike recalled that he said "this is an 'excited' area of humanity," which made no sense. The embarrassment overcame him so intensely that he had to call Dr. Baraban and confess his errors, lamenting at how he was a fraud. Mike looks back on this and cringes at his wretched display of low self-confidence. What types of memory were implicated in this entire episode?

Answer choices:

Declarative memory

Emotional

Modal

Motor

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Shugoshin protects the cohesins on the sister chromatids in meiosis during metaphase i. a. True b. False

Answers

Answer:

B. False

Explanation:

How would you interpret a micrograph that shows a cuboidal cell without a nucleus?

Answers

When preparing the slide, the blade did not cut through the nucleus.

Cuboidal epithelial cells have a single, central nucleus and are cube-shaped. They are typically found in glandular tissues all throughout the body in a single layer, such as a simple epithelium, where they manufacture and secrete glandular material.

To prepare a slide:

Put a drop of liquid in the middle of the slide to prepare it.Place the sample on the liquid with tweezers.Place one cover slip side against the slide at an angle such that it makes contact with the outer border of the liquid drop.Slowly lower the cover to prevent air bubbles.Utilize the paper towel to absorb any extra water.

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What is the final electron acceptor of the series of re-dox reactions that are facilitated by the electron transport chain in mitochondria?

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In electron transport chain (ETC) , Complex IV, also known as cytochrome c oxidase, oxidises  cytochrome c and delivers the electrons to oxygen, the final electron carrier in mitochondria.

The electrons in the electron transport chain (ETC) pass through a chain of proteins that raises its reduction potential and results in an energy release. A proton gradient is produced by pumping hydrogen ions (H+) from the mitochondrial matrix to the intermembrane space, with the majority of this energy being lost as heat in mitochondria .

This gradient generates an electrical difference with a positive charge outside and a negative charge inside, increasing the acidity.

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Which type of tissue is strong in one direction, but can rupture if lots of force is applied to the opposite direction of the fibers

Answers

Answer: I think it is Bone

Explanation:

Imagine you are standing in a meadow of sunflowers. Compare your view of sunflowers from the perspective of typological thinking and from that of population thinking.

Answers

Typological thinking is that classifies things only in terms of the types to which they belong, and ignore variations among individuals.

Ernst  coined the term 'typo-logical thinking' for the collection of misguided  metaphysical  ideas and evolutionary. The typo-logical thinking is real and the variation an illusion, while for popularization the type is an abstraction and variation is real only.

The idealized species into an individual that represented character of that differentiated from all other individuals. Population thinking rejects idea of each species in natural type and instead sees every species as a varying population of interbreeding individuals.

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What are ribosomes? state their functions ​

Answers

Answer:

Ribosomes, also called Palade granules, are macromolecular machines, found within all cells, that perform biological protein synthesis.

Explanation:

Function: The ribosome reads the messenger RNA (mRNA) sequence and translates that genetic code into a specified string of amino acids, which grow into long chains that fold to form proteins.

Answer:

a minute particle consisting of RNA and associated proteins found in large numbers in the cytoplasm of living cells. They bind messenger RNA and transfer RNA to synthesize polypeptides and proteins.

Explanation:

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Question 7 of 10
Why are certain traits adaptations in one ecosystem, but not in another?
A. Organisms lose adaptations when they migrate.
B. Organisms can learn new adaptations.
C. Ecosystems can have different conditions.
D. All ecosystems have the same amount of competition.

Answers

Answer:

C. Ecosystems can have different conditions

Explanation:

Different systems have different ecosystems meaning different things will happen to the life inhabiting them

The reduction of blood volume occurs following severe dehydration and hemorrhage; however, although dehydration results in an increase in hematocrit, immediately following hemorrhage hematocrit is unchanged. Explain this difference.

Answers

During bleeding, both formed elements (platelets, white blood cells, red blood cells) and plasma are lost from the circulatory system. They are lost proportionally, so initially there is no change in hematocrit.

Hematocrit is the percentage of the blood volume made up of elements (Hct = cell volume/blood volume). During dehydration, only water and electrolytes are lost, and the number of cells remains constant - the same number of cells in a smaller volume leads to an increase in hematocrit. When the body tries to restore blood volume, the first thing to recirculate is water from the ECF and this increases the amount of water without increasing the amount of red blood cells, so the compensatory mechanism causes the hematocrit to fall.

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The mineral-based pigment called ____, was used by early modern homo sapiens to color many artifacts and features.

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The mineral-based pigment called Ochre was used by early modern Homo sapiens to color many artifacts and features.

It was used by early modern homo sapiens to color many artifacts and features. This is the most common use by modern humans, especially archaeologists, as any iron rich rock that can be used as a pigment.

The two effects of dividing food-gathering labor, the camp and the dependence of the gender on each other beyond reproduction, were the first great steps toward modern human culture. Sharing of resources and its concomitant division of labor led to a divergence in both the biological and cultural evolution.

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8. Chromosomes in all human body cells (except for egg and sperm) are:

Answers

Answer:

diploid

Explanation:

diploid cells have 23 chromosome pairs, but egg/sperm cells are haploid and don't chromosome pairs

The cell you are examining under the microscope appears to contain a nucleus. This organism belongs to the domain:________

Answers

The cell you are examining under the microscope appears to contain a nucleus. This organism belongs to the domain Eukarya.

The only domain that includes multicellular, visible organisms including humans, animals, plants, and trees is eukaryote. Numerous microorganisms, including fungi, algae, and micro-animals, also call it home. Since fungi are so diverse, two distinct fungi may have genetic differences comparable to those between a person and a fish.Eukarya are eukaryotes, which have organelles and nuclei that are bound to membranes. Prokaryotes are older, less numerous, and simpler than eukaryotes.Eukarya refers to creatures with nuclei in their cells. Additionally, it is the only realm in which multicellular observable organisms, such as people, animals, plants, and trees, exist. Achaea and bacteria are unicellular organisms without nuclei.

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The modification of the genetic code of a living organism is called _____. Multiple choice question. DNA cloning genomic sequencing mutagenesis genetic engineering

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The modification of the genetic code of a living organism is called Genetic engineering.

Genetic engineering, often known as genetic alteration, is a technique that modifies an organism's DNA using technology developed in labs. This could entail altering a single base pair (A-T or C-G), erasing a section of DNA, or incorporating new DNA.In order to alter an organism or population of organisms, genetic engineering involves the artificial manipulation, alteration, and recombination of DNA or other nucleic acid molecules. The term "genetic engineering" is typically used to describe recombinant DNA technology techniques that were developed as a result of fundamental studies in microbial genetics. Human insulin, human growth hormone, and the hepatitis B vaccination are examples of items produced using genetic engineering techniques. Genetically modified organisms have also been created.

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It stimulates the secretion of steroids from the reproductive glands.

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Answer: Hypothalamic GnRH stimulates the gonadotroph to synthesize and release both FSH and LH which stimulate the gonads to produce sex steroid hormones and regulate germ cell function.

In order for a eukaryotic or prokaryotic cell to divide, it needs to first duplicate its entire ______, which consists of all of its genetic material.

Answers

In order for a eukaryotic or prokaryotic cell to divide, it needs to first duplicate its entire Genome ,which consist of all of its genetic material.

Prokaryotic cell division is termed binary fission.Prokaryotic chromosome is a single DNA molecule that first replicates, then attaches each copy to a different part of the cell membrane.

Mitosis is a process of nuclear division in eukaryotic cells that occurs when a parent cell divides to produce two identical cells.The first phase to cell  division is pro-phase in which the nucleus dissolves and chromosomes migrated.And then finally chromosomes are separated and the cells are physically split into two cells.

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The vagina is A. similar to the inner lining of the uterus. B. another term for the cervix. C. a muscular tube extending between the uterus and the external genitalia. D. a muscular tube extending between the uterus and the anus.

Answers

The vagina is a muscular tube extending between the uterus and the external genitalia (option C).

What is the vagina?

The vagina is one of the female reproductive organs.

It is the passage leading from the opening of the vulva to the cervix of the uterus for copulation and childbirth in female mammals.

The vagina is a muscular tube that runs from the uterus or womb to the opening of the external genitals in female mammals.

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What is the magnification of the ocular and objective lenses used to achieve a magnification of 600X on the virtual microscope?

Answers

The magnification of the eyepiece and objective lens used to obtain 600X magnification in the virtual microscope is 6.10.

What are microscope lenses?

Compound microscope lenses are called objective lens and ocular lens. The objective lens is a lens that is installed very close to the object being observed. The ocular lens is very close to the observer's eye.

With this information, we can conclude that 600X magnification in the virtual microscope is 6.10.

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In the context of joint mobilization techniques, for what are inferior femoral glides at 90 degrees of hip flexion used?

Answers

Hip Inferior Glide is used to improve hip flexion. The technique is performed in supine with the hip flexed to 90°.

This technique can be used for decreasing muscle spasm or pain, and is also useful to increase accessory joint movement for flexion and abduction movements.

By performing the therapy the clinician’s hands can be clasped at the superior proximal femur or a mobilization strap can be used to enhance grip and reduce sliding on subject's skin.  The clinician can simply lean back to impart an inferior force to the femur with a counterforce of the shoulder on the distal femur.

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What is the function of the fungal structure shown?
• A. Nutrient absorption
• B. Photosynthesis
• C. Reproduction
D. Energy production

Answers

Fungi are made up of masses of tubular filaments called hyphae that penetrate into and absorb nutrients from the substrates on which fungi grow. So the answer is A
Other Questions
AND the fire that breaks from thee then, a billion times told lovelier, more dangerous, O my chevalier! The prototype approach assumes that stimuli are classified into different concepts based on features that are ________. M Find the equation of an ellipse satisfying the given conditions.Foci: (-4, 0) and (4, 0); length of major axis: 14? Suppose that your friend owns a coffee shop and seeks your advice on changing the price of coffee to increase revenue. If you know that demand for coffee is relatively elastic, what advice will you give your friend 2. If you ran the world, which acts that are now legal would you makecriminal? Which criminal acts would you legalize? What would be theprobable consequences of your actions? Sarah had three times as many quarters as nickels. She had $3.20 in all. How many quarters did she have?A. 12B. 15C. 4 Political scientist richard neustadt contended that an effective president is successful in using ______. Consider our Moon, a white dwarf, and a neutron star. Which of the following lists them in the correct order of size (diameter), from smallest to largest Which of the following topics helps explain the organizational factors behind the Enron scandal How did the Supreme Court decision to throw out laws about children at work help big businesses, which grew under another Supreme Court decision ? List three different consequences of teen pregnancy. One of the three consequences should include a consequence relevant to the teen male (father). In your opinion, which is the most serious? Why? (Provide 5 sentences) Which former Soviet Socialist Republic, with its capital at Mensk (Minsk), also called White Russia, is still strongly linked to Moscow What are the roots of the polynomial equation x superscript 4 baseline x squared = 4 x cubed minus 12 x 12? use a graphing calculator and a system of equations. round noninteger roots to the nearest hundredth. Write a testable question that could be used to further investigate the topic of using the fossil record to identify changes in life on earth. Using this table, calculate the profit at each level of running shoe inserts production. Pair 1: $ Pair 2: $ Pair 3: $ Pair 4: $ Pair 5: $ Given the functions f(x) = x3 + x2 3x + 4 and g(x) = 2^x 4, (Consider domain, range, x-intercepts, and y-intercepts.) The period of gradual functional decline prior to acute symptoms is the __________ phase of schizophrenia. I need help on this please! Pigmented, raised, warty lesions over the face and trunk should be assessed by an experienced practitioner who can distinguish:_________