Answer:
children unable to receive an education so fron that not wise citizens
I think the correct answer would be A. The yolk sac becomes the placenta. It is membranous sac that is attached to the embryo. It provides all the nutrition and the blood cells needed by the embryo. It is also called the umbilical vesicle.
Answer:
an interacting group of various species in a common location
Explanation:
Answer: I'll help
Explanation:
21. Wood
22. 1885
23. 1890
24. 1945
These are rough estimates because it's a little difficult to interpret the graph but this should be close enough hopefully
