I’m pretty sure the answers are- Oxygen and glucose
A female fox is called a vixen
Answer: D
Explanation:
During embryogenesis, hematopoiesis begins in week 3 in the Yolk Sac, in Pander´s Island or Wolff´s Island, commonly known as the "blood islands". These blood islands develop from the umbilical vesicle, allantois, and chorion. In week 5, blood production starts on the fetal liver, and finally, at week 12 it begins in the bone marrow, spleen and, thymus.
Answer:
There are three
Explanation:
a large natural or artificial lake used as a source of water supply.
a supply or source of something.
a place where fluid collects, especially in rock strata or in the body.
