A tissue is defined as ____
a. one or more cell types that perform a common task
b. a cell that is unique in its function
c. various cells that perform different functions
d. the structural unit of an organ system
e. one or more organ types that perform a common task
ANSWER: a
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Scientists are researching how much influence ____________________ has on the differences in IQ among
population groups often classified as different racesFill in the blank(s) with the appropriate word(s).
Which one of the following is a result of programmed cell death?
A) formation of fingers in humans B) gastrulation C) formation of the notochord D) formation of the brain
In general, each gene codes for a specific protein
Indicate whether the statement is true or false