In the flower diagram shown above, the item labeled "7" is the
a. filament.
b. stigma.
c. ovule.
d. style.
e. anther.
D
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Which of the following is not true of DNA?
A) It is acidic. B) It contains deoxyribose. C) It is found in cell nuclei. D) It contains phosphate. E) It contains amino acids.
During Darwin's voyage, he noticed that the finches had developed unique traits that suited them to their particular island habitat. Darwin's observations at this location greatly influenced his formation of his theory of natural selection:
a. the Canary Islands. b. Africa. c. the Hawaiian Islands. d. the Galapagos Islands. e. Brazil.
The direct effect is more likely as a result of exposure to x-rays.
a. true b. false
Cladistic analysis of populations of blue wildebeest in Africa has helped to show that habitat fragmentation has led to a loss of ____.
A. evolution B. alleles C. genes D. gene flow E. mutations