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m_a_m_a [10]
3 years ago
6

About how long after fertilization do human cells lose totipotency

Biology
1 answer:
Oliga [24]3 years ago
5 0

The human cells will lose totipotency about 4 days after fertilization. The fertilized egg creates a single totipotent cell called  a zygote. The zygote divides into identical totipotent cells. Approximately about 4 days, the totipotent cells begin to specialize and becomes pluripotent.

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A main job of hcl is to begin _______ digestion. carbohydrate fat protein
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The answer to this is protein.

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After that, the other organs of the digestive system has more of a neutral to slightly alkali condition, which is not related to hcl. Therefore, the answer is protein.
5 0
3 years ago
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A population of mussels was observed in a particular ecosystem. Crabs have recently been observed occupying this ecosystem, whic
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Mussels are molluscans and are freshwater animals. The change in the environment led to new traits of mussels, it underwent natural selection and the thick shells have high chances of survival.

<h3>What is natural selection?</h3>

Natural selection is a process of nature that eliminates the organism with less survival and unfit traits while selecting the organisms with better traits of survival in the altered conditions.

The arrival or the introduction of the crabs in the environment altered the previous habitat of the mussels and led to the adaptation of the better trait quality in the mussel species.

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Therefore, option A. change in environment, option B. natural selection and option E. chances of survival are the correct statements.

Learn more about the natural selection here:

brainly.com/question/10715606

6 0
1 year ago
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Which order do this go in? 60 points.
Murrr4er [49]

Answer: I got it :)

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Domain, Kingdom, phylum, class, order, family, genus, and species.

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3 years ago
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Let "r" stand for the recessive red hair trait. A person with red hair must have a genotype of "rr" ( one from each parent) in order to have red hair( red hair being the phenotype).

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What is important information about S waves ?
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The S wave penetrate the interior of he earth
shake the ground perpendicular to the direction in which they are propageting.
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