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
#SPJ4
the Answer is C. because recessive means two of the same alleles and non dominant
Answer:
The correct answer is A. Tobacco mosaic virus
Explanation:
Virus can have DNA and RNA as its genetic material. Tobacco mosaic virus has RNA as its genetic material. Protein is not a genetic material because it is a product coded by genetic material.
So a hybrid can be made only when the genetic material of two different organisms is mixed not two different biomolecules. Therefore when RNA from the tobacco mosaic virus is mixed with the protein from a DNA virus the result would be a tobacco mosaic virus only.
Answer:
They have increased the amount of certain organisms (a lot of crops and such) and made the soil healthier. Also, other organisms that may feed on this are having more food.
Explanation:
Most Virginia fossils are of marine organisms. This indicates that large areas of the state have been periodically covered by seawater. What type of ... An opening where magma is erupted onto the Earth's surface. What is ... in Virginia? In the Valley and Ridge province, karst topography is common ... One or more minerals.