Question 9 of 10 What is immigration?
A. When animals are born in an ecosystem
B. When animals move into an ecosystem
C. When animals leave an ecosystem
O D. When animals die in an ecosystem
SUBMIT

Answer is option C

Explanation: . Emigration means an animal leaves its home because the habitat is no longer ideal for them and they need to find a more suitable environment.

i think the miocene epoch spans the time from 23 million to 12 million years ago.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."