What term refers to the action of touching the thumb to the tips of the other fingers?
a. Flexion
b. Abduction
c. Circumduction
d. Prehensile
e. Opposition
ANSWER: e
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Bacteria that live attached to surfaces are described as ________, whereas bacteria that are free-living, floating with a fluid environment are described as ________.
Fill in the blank(s) with the appropriate word(s).
ABO blood group determination is an example of
A. epistasis. B. incomplete dominance. C. polygenic inheritance. D. multiple alleles. E. pleiotropy.
Which characteristic is unlikely to be associated with the profundal zone?
a. the deeper part of the lake b. the area where light does not penetrate c. contains consumers d. contains primary producers e. contains cooler water than the other zones
If a trait has a heritability of 0.5, this means that
A. all variation in the population is caused by genotypic differences. B. all variation in the population is caused by environmental differences. C. the variation in the population is the result of epigenetic effects. D. the genotype and environment contribute equally to the variation seen in the population. E. None of these is true.