How did Wallace contribute to the history of ideas about evolution?
A) He proposed the idea that Earth is very old.
B) He was the main opponent of Darwin's ideas immediately after they were published.
C) He proposed the theory of inheritance of acquired characteristics.
D) He proposed a theory of evolution similar to Darwin's.
D
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DNA duplication occurs during
(a) interphase. (b) prophase I. (c) prophase II. (d) interkinesis.
In Mendel's peas, an individual heterozygous for seed color:
A. has only one kind of allele for seed color. B. has two different alleles for seed color. C. will express the dominant allele. D. will express the recessive allele. E. has two different alleles for seed color and will express the dominant allele.
Vestigial organs
a. did not have a function when they first developed, but do so today. b. are similar in many organisms. c. must have evolved individually in different organisms. d. are not found in present-day organisms. e. include the human appendix and wisdom teeth and a snake's hipbones.
Organisms such as lizards that need to maintain body temperature through external means do so by
A. running frequently to warm up. B. sunbathing. C. swimming in geothermal pools. D. eating large meals to provide calories for heat production. E. shivering to produce heat.