If the nuclei from an $8$-celled stage of an embryo are transplanted into enucleated eggs,which of the following events is likely to occur?

Release of spermatozoa from the urethra by male animals is called:

The eggs of a rabbit and a human are:

At menopause,there is a rise in the urinary excretion of:

Given below are two statements:
Statement $I$: Ovulation is caused by $LH$ surge leading to rupture of Graafian follicles.
Statement $II$: Graafian follicle remaining after ovulation transform into corpus luteum and secretes large amount of estrogen.
In the light of the above statements, choose the most appropriate answer from the options given below:

In the egg of a bird,the shell and shell membranes are: