Answer:
The given statement is true.
The pyramid representing the energy levels in an ecosystem is always similar for every type of ecosystem that is in an...
Answer:
the differentiation of the ovum (egg cell) into a cell competent to further develop when fertilized. It is developed from the primary oocyte by maturation. Oogenesis is initiated in the embryonic stage.
Answer:
Coelenterates are the first invertebrates to develop a true nervous system.