B. Roundworms<span>.
The Protostome organisms are subclustered into three main groups,
moreover nematoda or roundworms belongs to the Ecdysozoa group.</span>
<span>Roundworms are organisms that are diverse and almost in clustered to many other ecosystems and environment.
These
Protostome includes mollusks, annelids, and arthropods
</span>
Spermatogenesis is the process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis. This process starts with the mitotic division of the stem cells located close to the basement membrane of the tubules.
Answer:
I think B but not 100% sure.
Explanation:
I hope this helps!!! :D
Answer:
they are quickly used by the body, and are typically quick source of energy. They can be found in almost all sort of food. The composition of Carbohydrates are consisted of Carbon, Hydrogen, and Oxygen.