You encounter a bear while hiking, which of the following predominates and causes an increase in
your heart rate and breathing to help you run away?
a. the central nervous system.
b. the sympathetic nervous system
c. the parasympathetic nervous system
d. somatic nervous system
e. cranial nerves
B
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The spreading of cancer cells, wound healing, and blood clotting all rely on the same type of cell movement called:
A. swimming. B. crawling. C. waving. D. whipping.
When a group of functionally related genes located next to one another along the bacterial DNA is transcribed together as a single molecule of mRNA, that mRNA is called a ____ RNA
What will be an ideal response?
Which situation would be most likely to form a fossil under normal environmental conditions?
A. An elephant that died at the edge of a waterhole. B. A bird that died and fell to the forest floor. C. A slug that died in leaf litter. D. A jellyfish that died in an estuary.
In what way is the process of fertilization random?
a. in the type of gamete fertilized b. in the selection of which gametes fuse c. in the recombination of chromosomes d. in the number of chromosomes involved