Human sperms contain clupein protein.

Trophoblast cells in contact with embryonal knob are called cells of rauber.

It is not an hCG. It helps in the secretion and storage of milk in the mother after the birth of the young one.

It is secreted by the graffian follicles and helps in ovulation during the menstrual cycle.

Corpus albicans lowers the level of progesterone in the blood during the premenstrual phase.

The egg of a rabbit is alecithal. It has almost no yolk. It is found in eutherian animals.

A condition in which enlarged mammary glands are present in the male is called Gynaecomastia.

The human embryo has the protection cover of the Amniotic cavity.

It is formed by the outer cell mass which later develops into the placenta. It forms the outer wall of the blastocyst.

The eye lens is derived from ectoderm which is the outermost germ layer formed during the embryo development.

Germinal epithelium of the ovary possesses cuboidal cells.

It is a mode of drug action where several mechanisms operate in the manifestations of drug action.

These are extra embryonic membranes providing protection and nourishment to the growing foetus The eutherian placenta is derived from the layers.

It is a mode of drug action, not a principle of drug action.

The efficacy of an antacid depends upon its duration of stay in the stomach and so the neutralization process causes the prevention of activation of pepsin and secretion of excess HCl.

Nitrates cause further reduction of blood pressure and thereby aggravate stroke.

Aspirin has been implicated in the aetiology of Reye's syndrome characterized by liver damage and encephalopathy.