What is the value to a species of having genetic diversity?
What will be an ideal response?
Species with more genetic diversity have better chances of surviving, because their built-in variation better enables them to cope with environmental change. According to the principles of evolutionary biology, species with little genetic diversity are vulnerable to environmental change for which they are not genetically prepared. Species with depressed genetic diversity may also be more vulnerable to disease and may suffer the effects of inbreeding, which occurs when parents that are too genetically similar mate and produce weak or defective offspring. Genetic diversity in our crop plants is important for protection of our food sources.
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For each of the following unbalanced equations, which is depicted: oxidation or reduction?a) Cr ? Cr3+b) Sn ? Sn(OH)42-
A. a) reduction; b) oxidation B. a) oxidation; b) oxidation C. a) reduction; b) reduction D. a) oxidation; b) reduction
Which of the following is not a major challenge to the widespread use of renewable energy?
A) Consumers often have limited knowledge about the source of their electricity. B) Government subsidies for fossil fuels reduce incentives for the use of renewable energy. C) The cost of production of these new technologies is high. D) Renewables cannot produce enough energy to meet demand E) There are uncertainties and risk associated with investing in new technologies.
How did transgressing and regressing seas affect the quantity and diversity of life forms in the
Paleozoic? What will be an ideal response?
Government ____________________ keep the price of water so low that consumers do not worry about water waste.
Fill in the blank(s) with the appropriate word(s).