Question 1
A young man has begun to look and sound more physically mature, with the beginnings of a beard and a deeper voice. These changes can be attributed to the secretions of the
◦ ovaries.
◦ pancreas.
◦ pituitary.
◦ parathyroid.
Question 2
According to the theory of natural selection,
◦ organisms prefer natural environments to artificial habitats.
◦ each organism has the ability to choose which of nature's laws it will follow.
◦ organisms that are well adapted to their environment will produce more offspring.
◦ organisms that are well adapted to their environment will produce fewer offspring.