Genetic recombination in somatic cells is used to
a. produce variability in offspring.
b. determine cell types during development.
c. repair damaged or broken chromosomes.
d. produce specialized tissues in organs.
e. establish the sex of the individual.
C
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An instrument that measures lung volumes is a
(a) caliper. (b) spirometer. (c) barometer. (d) stethoscope.
Most carbohydrates manufactured in leaves and other photosynthetic parts are transported through the phloem to the rest of the plant by the process of
A. transpiration. B. translocation. C. osmosis. D. receptor-mediated transport. E. turgor pressure.
In a lake, a certain native species of zooplankton is found evenly distributed in the water column. After introduction of
a different species of zooplankton, the native species is only found in the shallow water zone. This is most likely an illustration of: a. character displacement. b. species richness. c. primary succession. d. secondary succession. e. competitive exclusion.
After the citric acid cycle, all of the carbon atoms from the original glucose molecule are:
A) taken into NADH. B) taken into ATP. C) released as carbon dioxide. D) recycled back to glycolysis. E) donated to NAD+