One of the functions of cholesterol in animal cell membranes is to

a. phosphorylate adp.

b. facilitate transport of ions.

c. maintain membrane fluidity.

d. store energy.

e. speed up diffusion

Worn-out red blood cells and tiny harmful bacteria are ingested by an immune system agent known as the

After blood enters the kidneys name the two paths the fluid takes A ureters B bladder C urethra

A small body in space usually composed of rock or metal

3. Hospitals are classified into four types depending on the sources of income received. List the four (4) main types.

The 'filtering factories' of the excretory system are called ___. a. rectum. b. alveoli. c. nephrons. d. bronchi.

What does it mean for an organism to be anaerobic? a. It is poisoned by water. b. It lives in salty environments. c. It is poisoned by oxygen. d. It produces large amounts of oxygen.

Chorionic villi sampling (CVS) is a test to determine whether fetal cells have genetic abnormalities and can be performed as early as 8 weeks. Chorionic villi cells are removed using a small tube that is passed through the cervix.

The largest carbon source is

What do sensory neurons do? A. Detect, feel, and smell B. Connect the brain to the spinal cord C. Connect parts of the brain D. Control muscle movement

Which of these scenarios illustrates natural selection due to behavior