Most of Darwin's observations about changes in species over time and in different environments took place in and near
A. Africa.
B. Greenland.
C. South America.
D. Asia.
E. North America.
Answer: C
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An organism whose genome has been engineered to include or change a genetically controlled trait is called a ____
a. bacterium b. clone c. transcriptionally modified organism d. genetically modified organism (GMO) e. somatic organism
Which of the following is NOT true of the sex
hormones?
a. They are produced in the gonads. b. They are protein hormones. c. Estrogen is an example. d. They influence gender and sex differences. e. They are derived from the steroid cholesterol.
When population growth rate = rN, this type of growth can be called
A. growth at the carrying capacity. B. exponential growth. C. logistic growth. D. sigmoid growth.
There are vaccines for diseases caused by
a. bacteria. b. viruses. c. protozoa. d. fungi. e. a and b. f. a, b, and c.