where would it go? only if an asteroid with water hit the earth the amount might change
Sharks, like all vertebrates, have bilateral symmetry. This
means they have symmetry across one plane (known as the sagittal
plane, and directly down the centre of their body), which means one
It is thigmotropism because it is not affected by gravity or light.
hormones can stimulate cell regulators to increase cell reproduction. Thus option C is correct.
<h3>what are the role of hormones in reproduction ?</h3>
Hormones are the chemical messengers produced by the endocrine cells and it move through the blood, act on target cells.
The two most important reproductive hormones are estrogen in female and testosterone in male.
Estrogen induce the eggs development and maturation process in adult female and released during regular intervals of menstrual cycle.
Testosterone in male responsible for male gamete production.
Other hormones involved, such as Follicle stimulating hormone (FSH), Luteinising hormone (LH).
Thus option C is correct.
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