Answer:
yea I know, I tell people not to click on them
Https://www.nature.com/scitable/topicpage/the-information-in-dna-determines-cellular-function-652322...
If you use this link, it will help you. I do not own this website in any shape or form. I hope this helps!
In humans, the yolk sac is the
site of origin for blood cells and primordial germ cells. The human yolk sac is
a membrane located outside the embryo and it is connected by a tube through the
umbilical opening to the embryo's midgut. The yolk sac serves as an early site
for the formation of blood and in time, is incorporated into the primitive gut
of the embryo.
It is the repiratory and the circulatory
Answer:
not see clearly yrr.........
