Reproduction | ck-12

Question 1

define ovulation

Answer 1

the release of an egg from an ovary; a part of the menstrual cycle

Question 2

define menstruation

Answer 2

the process in which the endometrium of the uterus is shed from the body

Question 3

define endometrium

Answer 3

tissues lining the uterus; shed from the body during menstruation

Question 4

define embryo

Answer 4

very early stage in the development of an organism in which initial growth and development take place; lasts from fertilization to the eighth week of development

Question 5

Where do cells come from?

Answer 5

all cells come from preexisting cells through the process of cell division