What pathway for the transformation of cellular energy evolved first?

1 answer:

5 0

<span>Glycolysis, because it is universal to virtually all organisms---eukaryote and prokaryote (aerobic and anaerobic).
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Gray wolves in the rocky mountains

LUCKY_DIMON [66]

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3 years ago

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Maslowich

Ah, I'm not sure. I hope someone helps you!

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Genetic drift is the process where there are random fluctuations in the gene frequencies within a population. This can eventuall

kirill [66]

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The divisions of the nervous system that have antagonistic actions, or opposing actions are A) motor and sensory. B) sympathetic

Effectus [21]

Answer:

B) sympathetic and parasympathetic

Explanation:

e autonomic nervous system also called the vegetative nervous system is part of the peripheral nervous system which inervates smooth muscle and glands. Thus, it directly affects the function of internal organs and regulates functions such as the heart rate, digestion, respiratory rate, urination etc. This nervous system control is unconscious.

The autonomic nervous system is divided into: the sympathetic nervous system, the parasympathetic nervous system and the enteric nervous system.

Parasympathetic nervous system works when organism is at rest so it is known as system responsible for "rest and digest functions". On the other hand, sympathetic nervous system works at active and stressful situations and it is known as "fight and flight" system.

7 0

4 years ago

[ANSWER INCLUDING]

Rus_ich [418]

The mother's genotype can be either $X^AX^A$ or $X^AX^a$ .

For X-linked recessive traits, males (XY) can either be affected or free from the disorder, they cannot be carriers. Females (XX), on the other hand, can be affected, unaffected, or be carriers.

The circled male child is free from the disorder ( $X^AY$ ) while the females are carriers ( $X^AX^a$ ).

The male inherited the healthy allele, $X^A$ , from the mother.

The female children inherit the affected allele from their father (who is affected for the disorder) and the other healthy allele from their mother.

This means that the mother cannot be affected for the disease. As it is, the pedigree points that all the children got their healthy alleles from their mother. This does not mean the mother has two healthy alleles though.

Thus, the possible genotype of the mother are $X^AX^A$ and $X^AX^a$ .

More on pedigrees can be found here: brainly.com/question/2952835?referrer=searchResults

5 0

3 years ago