According to research, which of the following improves the effectiveness of a conservation preserve?
a. surrounding the preserve with a buffer zone
b. being shaped with multiple thin arms
c. having small rather than large preserves
d. including only a few species in each preserve
a. surrounding the preserve with a buffer zone
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Skeletal muscle H zones are composed of ____
a. discs to which thin filaments are anchored b. stacked thick filaments along with the parts of thin filaments that overlap both ends c. thin filaments but no thick filaments d. thick filaments but no thin filaments e. stacked thin filaments along with parts of thick filaments that overlap both ends
Dyes are usually added to sections of biological specimens to increase
a. resolving power. b. magnification. c. contrast. d. all of the above.
Changes in what are the basis for microevolution?
a. genes b. behavior c. physiology d. mitosis e. phenotypes
CO2 and other gases, which absorb the longer wavelengths of infrared light and radiated heat from Earth, are responsible for causing the
A. acid rain. B. ozone layer depletion. C. greenhouse effect. D. decreased biodiversity.