Which of the following is NOT part of a molecule of DNA?
A.) deoxyribose
B.) nitrogen base
C.) phosphate
D.) ribose
Ans: D.) ribose
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Where would a coral reef most likely be found?
A. In the deep sea B. In an estuary C. In the warm tropical waters where the sun can penetrate D. In the oceanic benthic realm below the continental shelf
Neurons that carry messages within the CNS are
(a) sensory. (b) motor. (c) interneurons. (d) autonomic.
Riparian zones are valuable habitats because they
a. are a line of defense against flood damage. b. conserve water during droughts. c. provide food, shelter, and shade to wildlife. d. are home to more than 65 percent of the endemic species of the western United States. e. provide all of these.
All of the offspring of a black hen and a white rooster are gray. The simplest explanation for this pattern of inheritance is:
a) incomplete heterozygosity. b) incomplete dominance. c) multiple alleles. d) codominance. e) sex linkage.