The sex hormones of many animals are lipid molecules known as ____
a. fatty acids
b. phospholipids
c. carotenoids
d. steroids
e. lipoproteins
ANSWER: d
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Which of the following is NOT true of the sex
hormones?
a. They are produced in the gonads. b. They are protein hormones. c. Estrogen is an example. d. They influence gender and sex differences. e. They are derived from the steroid cholesterol.
A population’s __________ is the average number of
children born to women during their reproductive years. Fill in the blank(s) with the appropriate word(s).
As part of the maturation process, red blood cells lose their nucleus. What is the consequence for cell division in these cells?
What will be an ideal response?
A neutral atom of chlorine has an atomic number of 17, it has _____electrons in its 3rd shell.
a. 2 b. 17 c. 8 d. 7