Which of the following is not a benefit of biodiversity?
a. climate regulation
b. development of novel medicines
c. new and better crop plants
d. biological magnification
e. production of freshwater
Answer: d. biological magnification
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Traditional ways of evaluating multifactorial traits include
A) empiric risk and heritability. B) Punnett squares and pedigrees. C) surveys that ask people what they have been exposed to. D) tests for several Mendelian traits or diseases.
The growth of a new plant on the margin of a leaf that eventually falls to the ground and grows
independently is an example of
a. fragmentation. b. protoplast fusion. c. somaclonal section. d. grafting. e. apomixis.
About which of these did Darwin have a poor understanding?
A) that individuals in a population exhibit a good deal of variation B) that much of the variation between individuals in a population is inherited C) the factors that cause individuals in populations to struggle for survival D) the sources of genetic variations among individuals E) how a beneficial trait becomes more common in a population over the course of generations
What is one function of the muscular system?
A. Transmission of electrical signals B. Connection of ligaments to bones C. Heat production D. Exchange of gases with the atmosphere E. Prevention of desiccation