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Anit [1.1K]
3 years ago
9

Genetic variation ________. Genetic variation ________. is created by the direct action of natural selection tends to be reduced

by when diploid organisms produce gametes arises in response to changes in the environment must be present in a population before natural selection can act upon the population
Biology
1 answer:
taurus [48]3 years ago
6 0

Answer: Natural selection can act on traits determined by alternative alleles of a single gene ... hope this helps, this is one of many answers for this question!

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Emotional memory ________.
suter [353]

Answer:

The correct answer will be option-A

Explanation:

Emotional memory refers to the memories of experiences which evokes or triggers the emotional reaction in higher organisms.

Emotional memory after evoking the emotional reactions remembers the past experiences based on which the person feels if the present event is pleasant or unpleasant.

The pounding of the heart is caused by the shock or the stress conditions observed with the fast beating of the heart. In the given question, When the heart pounds after seeing the rattlesnake will be considered response caused by the emotional memory as the rattlesnake is dangerous to humans based on the past experiences which evoke the emotional response.

Thus, option-A is the correct answer.

3 0
3 years ago
What is one characteristic that you could observe under the microscope to distinguish diatoms and dinoflagellates?
lapo4ka [179]

The "frustule" cell wall of diatoms. A dinoflagellate isn't constructed this way. The frustule is composed of two parts which are pretty much identical except for size -- one of the parts is slightly smaller than the other.

6 0
3 years ago
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PLEASE HELP EMERGENCY!! IF YOU ARE NOT 100% SURE ABOUT YOUR ANSWER DO NOT ANSWER THEN!! PLEASE!!
nydimaria [60]
I would say organ systems
7 0
3 years ago
An environmental factor that causes a population to decrease
Otrada [13]
<span>An environmental factor that causes a population to decrease is death</span>
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4. A bacterium is discovered with new mutated form of isocitrate dehydrogenase that catalyzes the same reaction but produces hyd
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Isocitrate + NAD+ -> a-ketoglutarate + CO2 + H2

The amount of ATP produced from one molecule of glucose will decrease because NADH is no longer produced in the isocitrate dehydrogenase reaction. Without generation of this high energy electron carrier there will be less electrons from one molecule of glucose that are transferred to and through the electron transport chain. So there will be less protons (H+ ions) pumped into the intermembrane space. So there will be less of a H+ ion gradient across the inner mitochondrial membrane to drive the synthesis of ATP by ATP synthase.
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