The basic structural unit of the nervous system is the

A. axon.

B. neuron.

C. red blood cell.

D. white blood cell.

Name external layer of rbc

Which of the following usually is not a reason people choose to live in a given area? A. climate B. environment C. job availability D. number of schools

Proteins that provide nine essential amino acids are called:

Find the area of a frame that measures 20 inches on each side and has a width of 3 inches

The brain and heart are examples of what?

20. What is a nucleotide?

Carbohydrates are the primary source of energy for the human body, for energy production. If If your body lacks enzymes that break down carbohydrates, it would be unable to get you lacked the enzyme to digest proteins, you may not absorb enough

Recall the steps of building a protein

You expect interstitial endocrinocytes (interstitial cells of Leydig) to be rich in which of the following?

Which of the following is an example of sustainability? A) cutting down all the trees in a forest without replanting any B) consuming more cattle than are being born C) recycling a metal can so it can be reused D) leaving the lights on in a room you