The atrioventricular node functions as the cardiac pacemaker.
a. true
b. false
Answer: b. false
Biology & Microbiology
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Cleavage produces the
a. zygote. b. blastula. c. gastrula. d. puff. e. third germ layer.
Biology & Microbiology
Explain the reasoning behind the laws in some European countries that limit the number of children that can result
from a single sperm donor. Do you agree with these restrictions? Why or why not? What will be an ideal response?
Biology & Microbiology
A nerve consists of:
a. a grouping of dendrites. b. a mass of cell bodies. c. a network of neurons. d. a bundle of axons. e. glial cells.
Biology & Microbiology
Which two means of birth control are most similar in the way they prevent pregnancy?
a. tubal ligation and IUDS b. oral contraceptives and spermicides c. tubal ligation and condums d. oral contraceptives and hormone patch
Biology & Microbiology