Plants often do not survive indoors because they lack adequate amounts of (Check all that apply)
A. light.
B. carbon dioxide.
C. water.
D. minerals.
Answer: D
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The process of evolutionary changes that result in formation of new species and groups of species is called
A. temporal evolution. B. artificial selection. C. macroevolution. D. serial evolution. E. a combination of temporal and serial evolution.
Crossing over creates new ________
a. combinations of alleles b. alleles c. zygotes d. chromosomes
A tariff is a
a. tax on exports. b. penalty imposed on exporters who export a greater quantity than the quota allows. c. penalty imposed on importers who import a greater quantity than the quota allows. d. tax on imports.
Acid rain
a. attacks nylons. b. attacks marble statues. c. seriously damages the chemistry of the ecosystem. d. contains sulfuric and nitric acids. e. all of these.