C.

growth hormone

Growth hormone (GH) is secreted by anterior pituitary gland. It works with thyroid hormone and controls the normal growth. Hypersecretion (over production) of growth hormones in children causes the bones to grow unusually long. This results in a condition known as gigantism. But in adults, hypersecretion of growth hormone causes the bones of hands and face to thicken. This results in a condition called as acromegaly.

B.

trigeminal

Trigeminal nerve is fifth cranial nerve of frog. It arises from lateral sides of medulla oblongata.

Vagus is a large mixed and tenth cranial nerve. It regulates the respiration rate, heart rate and digestive activities.

Optic is the second sensory cranial nerve, which brings in sight messages from eyes.

Olfactory is the first sensory nerve, which brings in smell messages from nose.

A.

Dentary

Dentary is a tooth bearing membrane bone. In mammals, it is the lower jaw, consisting of single membrane bone on each side fused together in front.

A.

simple reflex

If frog's brain is crushed even then its leg moves on pinpointng, is an example of simple reflex. It occurs without the involvement of brain. Simple reflex is controlled by spinal cord only.

A.

asexual reproduction

Gemmules are asexual reproductive bodies of. sponges. These are formed by endogenous budding in all fresh water and some marine sponges.

Sexual reproduction involves viable male and female gametes.

Development of egg into an adult without fertilization is called parthenogenesis. It is common in honey bees.

Parthenocarpy is the development of seedless fruits.