The most important evidence that Darwin used to develop his theory of natural selection came from ____
a. the Argentine pampas
b. his boyhood neighborhood in England
c. the Galápagos Islands
d. Australia and New Zealand
e. South America
ANSWER: c
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Which of the following statements about plant reproduction is incorrect?
A. Monoecious plants can have male and female flowers on the same plant. B. Dioecious plants have male and female flowers on different plants. C. Self-pollinating angiosperms are usually adapted to stable habitats. D. Outcrossing promotes genetic diversity. E. Self-pollinated plants must be visited by pollinators for fertilization to occur.
The age that saw a great diversification of land plants, as well as the first amphibians, was the
a. Cambrian. b. Cretaceous. c. Devonian. d. Jurassic. e. Ordovician.
Glucose and sugars in DNA and RNA
a. have the same number of carbon atoms. b. have the same structural formulas. c. are the two components of sucrose. d. are monosaccharides. e. are both components of RNA.
Polyhydroxyalkanoates used for medical devices
What will be an ideal response?