Its B. <span>Australopithecus africanus, Homo erectus, Homo neanderthalensis</span>
<span>The
most important estrogen is estradiol and the most important androgen is
testosterone.</span>
Testosterone
is the primary steroid male sex hormone. Its function is to control the development
of male reproductive tissues, to promote secondary sexual characteristics to
maintain health (the prevention of osteoporosis for example). It is synthesized
from cholesterol and it achieves its effects by binding to androgen receptors
on different tissues.
Advantages of separated karyogamy and plasmogamy.
Explanation:
In many fungi, the time of nuclear fusion is separated from the time of cytoplasmic fusion . This arrangement benefits by allowing mating and spore formation to occur in different environment.
Karyogamy is the process of fusion of nuclei , this precedes spore formation.
Plasmogamy is the fusion of cytoplasm, this process involves mating.
Mating is succeeded by spore formation. Both the processes are favored by different environmental condition.