The major mechanism of evolution is
a. species development.
b. predation.
c. fitness.
d. natural selection.
d
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Explain why only 5 to 30% of the energy contained in a particular trophic level may be passed to the next trophic level
What will be an ideal response?
The __________ species concept defines a species as a population whose members do not interbreed
in nature. a. genetic b. ecological c. morphological d. biological e. evolutionary
When a vesicle moves along microtubules toward the center of the cell, the molecular motor(s) ________ are used?
A. kinesin B. Molecular motors are not required for movement along microtubules. C. both kinesin and dynein D. dynein
Members of the genus ________ are associated with scarlet fever, rheumatic fever, pneumonia, etc.
Fill in the blank(s) with the appropriate word(s).