The yolk sac functions to form blood cells in early development (embryonic phase) for nourishment of the embryo and early fetus. Towards the end of the 1st trimester, the yolk sac disappears and the placenta takes over for the fetus.
Let me see it because for some reason there’s not a picture here
Answer:
heredity
Explanation:
Heredity is the passage of information that specifies an organism's traits encoded in genes from one generation to the next. Variations refers to the differences between individuals. The study of these variations and how they are inherited from parents to offspring is called genetics.
<span>Choanoflagellate.
These are the organisms that are considered to be the single celled protists most closely related to animals because the characteristics that can be found in these organisms are the characteristics that were probably present in the animal's ancestor organism. </span>
