Population density is determined by the number of:
a. individual organisms in a given area.
b. individuals of a species in an ecosystem.
c. species in a given area.
d. individuals of a species in a given area.
Ans: d. individuals of a species in a given area.
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Elucidation of the histone code might
A. allow us to turn specific genes on or off. B. allow the determination of nucleosome composition. C. lead to chromatin remodeling. D. allow us to control translation.
Microorganisms are best defined as organisms that
A. cause human disease. B. can only be found growing in laboratories. C. are infectious particles. D. are too small to be seen with the unaided eye. E. lack a cell nucleus.
Only pre-synaptic neurons are coated with myelin.
a. true b. false
For which of the following questions would you use the sum law?
A) determining the chance of pulling an ace from a deck of cards B) determining the change of rolling a 5 on a ten-sided die C) determining the chance of having a tall plant with purple flowers D) determining the chance of having a baby girl E) determining the chance of pulling either a club or a heart from a deck of cards