Question

What is the fourth stage of the estrous cycle where, if no pregnancy occurs a drop in hormone levels prepares the reproductive system for the estrus the first stage of the cycle?

A: Diestrus
B: Estrus
C: Metestrus
D: Proestrus

Answer 1

The four stages are proestrus, estrus, metestrus and diestrus! So, the fourth stage is diestrus. :)

Step-by-step explanation: