<span>A hormone doesn't determine the gender. Chromosomes do. But the female hormones are estrogen and progesterone and the male is testosterone.</span>
How are we to know the answers without knowing about which groups the question pertains.
A change in protein comes along.
I hope this helps and have a wonderful day filled with joy!!
Downward pull of gravity can cause materials to move from areas of high elevation to areas of low elevation. The force of gravity can cause rocks and glaciers to move down mountain slopes, and also cause rivers to flow toward the oceans. Landslides are the sudden mass erosion of rocks down a hill.
Answer:
A. Student A because it requires a hypothesis