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.
Predators are the ones who consume the prey and rely on them as a food source, while prey rely on predators to control their population.
Answer:
B: When severe weather occurs causing large waves to hit the coast.
Explanation:
when coastal flooding occurs, storms push the seasonal high tides towards the shore which causes the flooding
Answer:
medium. (Science: cell biology) shorthand for culture medium or growth medium, the nutrient solution in which cells or organs are grown.
Explanation the top one is math mines biology
