Which of the following populations would have the highest population growth rate?
A. a population with a high natality and a high mortality
B. a population with very few old animals in it and a large number of young animals
C. a population in which 65% of the animals are males
D. a population with low natality and high mortality
B. a population with very few old animals in it and a large number of young animals
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The Calvin cycle requires all of the following except
A. carbon dioxide. B. oxygen. C. ATP. D. NADPH. E. water.
Darwin was influenced by which concept attributable to Charles Lyell?
a. The geological history of Earth is a series of catastrophes. b. Acquired characteristics can be inherited. c. Natural selection operates on the tremendous variation found in nature. d. All life forms a part of a great Chain of Being. e. Gradual geologic forces formed the earth's current landscape over a long period of time.
A and B antigens in human blood are produced by the conversion of ________ by the addition of a sugar group
A) anti-A and anti-B antibodies B) the H antigen C) hemoglobin D) ?-N-acetylgalactosamine E) anti-O antibodies
Suppose the template DNA strand of a "mini-gene" has the base sequence TACCCGGATTCA. The anticodon of the tRNA that carries the first amino acid to the ribosome will be
A) AGU. B) UAG. C) AUG. D) UCA. E) UAC.