When cells stop responding to normal controls over growth and division they
a. begin to form a tumor.
b. produce a malignancy.
c. start to die.
d. kill surrounding cells.
e. produce scar tissue.
ANSWER: a
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Fats are major components of the cell’s
a. membranes. b. cytoplasm. c. proteins. d. ribosomes. e. mitochondria
A homeodomain is a region within a protein that
A) acts as a receptor. B) has kinase activity. C) binds to specific base pair sequences. D) binds to transcription factors.
What is altruism?
A. Acts that cost the actor but do not benefit another B. Acts that cost the actor and benefit another C. Acts that do not cost the actor and do not benefit another D. Acts that do not cost the actor and benefit another
What three features define eusociality? (Check three.)
A. insect species only B. overlap of generations C. haplodiploidy D. cooperative brood care E. reproduction during a mating flight F. reproductive division of labor G. colony resides in an enclosed hive or nest