Option B is the answer...........
Answer:
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Explanation:
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Your baby goes through a period of rapid change after conception known as the embryonic stage. The infant is referred to as an embryo at this point. The eyes form between days 21 and 28.
<h3>What is meant by the embryonic stage?</h3>
Your baby goes through a period of rapid change after conception known as the embryonic stage. From the fifth to the tenth week of pregnancy, this phase lasts. The infant is referred to as an embryo at this point. The embryonic stage is when a lot of changes take place.
An embryo exists the first stage of a multicellular organism's development. Embryonic development is the phase of the life cycle that starts right after the male sperm cell fertilizes the female egg cell in sexually reproducing organisms.
The embryo is about the size of a pea at four weeks old. The head is defined by crudely drawn eyes and ears, and tiny bumps serve as the body's arms and legs. The embryo also has a developing nervous system and its head is growing.
Therefore, the correct answer is option d. The eyes form between days 21 and 28.
To learn more about the embryonic stage refer to:
brainly.com/question/27873806
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Answer:
About 95 percent of the skin cells in the epidermis are devoted to creating new skin cells in the lower two levels of the epidermis, which then cycle to the top layer to help form the stratum corneum. Eventually the dead cells of the stratum corneum flake off as new keratinocytes move up, and the cycle repeats itself.
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Answer:
Explanation:3Natural selection is dependent upon the environment; different environments produce different adaptations in species
