تمارين أونلاين Biology unit1 ch3 lesson 4 ||| Reproduction in human

On the formation of sperms, the change in the size of cells with the constancy of their number and the number of chromosomes occurs in the……………………stage.

The number of sperms that are resulted from the division of 10 spermatogonia is
…………………….sperms

The number of male gametes that are resulted from 10 secondary spermatocytes is………….

The stage in which the meiosis ends in oogenesis of a human female is……………stage.

The number of female gametes that are resulted from 5 primary oocytes is…………………….

Starting with four cells of oogonia in a cat’s ovary (mammalian animal), therefore after ending the divisions, the maximum number of produced cells is……………………

The opposite graph illustrates a stage of………

From each ovary. one ovum is released every …………………………..

The follicular cells that remain in the ovary after the ovulation process are called the ………..

The lowest level of the ovary’s hormones in a woman is in the ……………….stage.

The main source of progesterone hormone for a woman after 10 days of the occurrence of ovulation is the ………………..

The hyposecretion of ……………………..hormone leads to the occurrence of menstruation.

The anterior lobe of the pituitary gland secretes luteinizing hormone (LH), when………………..

The corpus luteum secretes progesterone hormone, when …………………

If you know that the menstruation in an adult human female occurs on 20^th of September, it is probably that the ovum will liberate from the ovary on ………………………..

Which of the following graphs illustrates the level of estrogen hormone before the ovulation process during the menstrual cycle of human female ?

The highest level of estrogen hormone in an adult female is on the……………. day from the beginning of menstruation.