I'd have to say either 1 or 3. I would choose number 3.
It is in the nature of the animal to act as how their biological parents did. Genetically something in the brain keeps the "tradition" ongoing.
Answer:
The right answer for the blank is cleavage.
Explanation:
After fertilization the next step is cleavage in which zygote divide mitotically. As the embryo move from oviduct down the fallopian tube it divide into two cell and then four cells. four cell embryo is known as blastomere.
Basically, Lamarck's<span> theory postulates that traits acquired by organisms are inherited to their descendants: While </span>Darwin's<span> theory postulates that randomly acquired traits in organisms are selected by pressures in the environment. Traits that are best fit to the environment survive and get passed on</span>
The marine ecosystem that is most similar to the tropical
rain forest in terms of the diversity is the coral reef. The coral reef are
held by a structure referred to as a calcium carbonate and they are considered
to be diverse in the ecosystem underwater.
