Development of cities and towns can have all of the
following effects EXCEPT
a. to produce pollutants that kill endangered
species.
b. to bring exotic species of plants to an area that
take over and kill native species.
c. pet cats can kill songbirds.
d. to fragment breeding areas and interfere with
normal migration patterns.
e. all of these are effects of development.
Answer: e
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Which one of the following is a characteristic of complex multicellular organisms, but not simple multicellular organisms?
A. the functional specialization of subsets of cells in the organism B. the use of cell-adhesion molecules to allow cells to adhere to one another C. the presence of a single cell with multiple nuclei D. the presence of cells that are not in direct contact with the external environment
Outline the four characteristics of cancer
What will be an ideal response?
Specialized secretory cells centrally located in the brain in the third and fourth ventricles that produce CSF are called the:
a. choroid plexus. b. ventricles. c. meninges. d. pia mater.
The residence time is equal to the pool size divided by the flux between pools. The pool size of atmospheric carbon (carbon dioxide, methane, etc) is ~750 Pg, and the movement of carbon into the atmosphere from burning fossil fuels is around 7.5 Pg/year. How long does carbon from burning fossil fuels remain in the atmosphere on average?
A) 7.5 years B) 10 years C) 100 years D) 750 years E) There's not enough information to answer