In DNA, adenine pairs with uracil.

The __________ is the tube down which food flows to the stomach.

The long fiber part of a neuron is called a(n) __________.

Match what each of the following hormones do in the male:

Genes are distinct regions of a chromosome.

Endocrine glands are ductless and discharge their secretions into the blood or tissue fluid.

The central nervous system (CNS) is composed of __________.

“Fight or flight” refers to the __________ division of the autonomic nervous system.

Sudoriferous glands have secretions that reduce body temperature.

Match the following terms below.