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Maslowich
2 years ago
8

All of these terms EXCEPT ___________ contribute to natural selection. A) cladograms B) coevolution C) mass extinctions D) adapt

ive radiation
Biology
2 answers:
mojhsa [17]2 years ago
3 0
The answer is A)cladograms
Levart [38]2 years ago
3 0

Answer:

Option A, cladograms

Explanation:

Cladogram is basically a tool that is used to represent the phylogenetic relationship between organisms. Here the organisms are represented in a diagram with a hypothetical relationship among them . It has no contribution in the change of morphology, analogy or genotype of any of the organsim represented in it. Hence, cladogram is just a method to study the relationship between organism.

While all three coevolution, adaptive radiation and even mass extinction bring changes in the species in some or the other form with time.

Hence, option A is correct

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What determines the temperature of a layer of the atmosphere
Fofino [41]

Answer:

How far down the layer is

Explanation:

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3 years ago
Which processes releases energy to be used by a cell
const2013 [10]

Answer:

respiration

The source of the energy required to regenerate ATP is the chemical energy stored in food (e.g. glucose). The cellular process of releasing energy from food through a series of enzyme-controlled reactions is called respiration . Some of the energy released is used to produce ATP.

Explanation:

all based on research.

4 0
3 years ago
Gabe's wife wakes him from his peaceful slumber to tell him she heard a noise. As he slowly gets up to investigate, his heart be
allochka39001 [22]

Answer: Clearly his SYMPATHETIC nervous system has been activated.

Explanation:

The effects of the sympathetic nervous system dominate in times of EMERGENCY or STRESS. And its effects include:

- dilation of pupils to help Gabe see sharply as he investigate

- inhibition of saliva secretion as his mouth turns dry

- acceleration of heartbeat due to fear

- stimulation of sweat glands to produce sweat.

All these show clearly that Gabe's SYMPATHETIC nervous system has been activated.

5 0
3 years ago
Under anaerobic conditions, such as intense exercise, pyruvate is converted to ____________ . This 3-carbon molecule travels thr
stiv31 [10]

Answer:

Under anaerobic conditions, such as intense exercise, pyruvate is converted to <u>lactate.</u> This 3-carbon molecule travels through the blood to the liver, where it can be converted to glucose by the <u>cori cycle.</u>

Under aerobic  conditions, pyruvate enters the mitochondrion, where it is converted to <u>acetyle CoA . </u>This 2-carbon molecule goes on to participate in a series of oxidative reactions called the <u>Citric acid cycle.</u>

Explanation:

In the question ,among the given 6 options ,the simplest way to find the answer can be ,to find either the option is aerobic (presence of free oxygen ) or anaerobic (lack of  free oxygen). Among the options , glucose is an incorrect option as it is a carbohydrate and used in respiration process .In aerobic process ,the glucose can be break down but in anaerobic ,it can only be used.

Other option is ATP- ATP is the energy source of the cell and used for storing energy or reactions of the cell,thus this option do not belong to the given question.

thus its clear the rest four options are the answer .

among four two options belong to aerobic and the rest two are anaerobic.

<u>Under anaerobic conditions-</u>

The pyruvate is converted into lactate because under the absence of oxygen only the NAD+ can be regenerated, thus further can allow glycolysis.

The cori cycle is also called lactic acidic cycle, thus this cycle is a metabollic pathway produced by anaerobic glycolysis (which takes place by regeneration of NAD+)transporting the molecules from blood to liver and  further converting to glucose

<u>Under aerobic conditions,-</u>

The pyruvate is converted into <u>Acetyle CoA </u>so as to further produce <u>citric acid  </u>and then citric acidic cycle. Thus Acetyle CoA forms more ATP which help in the regeneration of NAD+ and production of citric acid cycle takes place.

<em>HENCE , The correct options are - </em><u>lactate </u>  <u>cori </u>  <u>acetyle CoA </u>  <u>citric acid.</u>

7 0
3 years ago
Small lizards have difficulty defending their territory, but large lizards are more likely to be preyed upon by owls. which type
IceJOKER [234]
<span>Stabilizing selection is at work in this case. This is the force that allows a population to gradually center on a mean value due to a presence of a non-extreme bodily trait. The more extreme examples of the trait lead to the organisms being selected out, and the trait that is the least conspicuous wins out in the long-run.</span>
3 0
3 years ago
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