The first sales were probably RNA and protein surrounded by lipid coat
a. true
b. false
Answer: b. false
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Four of the five answers listed below are plants
in which the sporophyte is dominant. Select the EXCEPTION.
a. club mosses b. tomatoes c. cycads d. liverworts e. horsetails
Among the following substances contaminating Aberdeen Proving Ground in Maryland, which is an organic compound
that damages the nervous system, liver, and lungs?
a. lead b. arsenic c. dimethyl chloride d. trichloroethylene e. mercury
__________, which assists in fat digestion, is made in the liver and stored in the __________. Fill in the blank(s) with the appropriate word(s)
Thirty people are selected for a long-term mission to colonize a planet many light-years away from Earth. The mission is successful, and the population rapidly grows to several hundred individuals. However, certain genetic diseases are unusually common
in this group, and the group's gene pool is quite different from that of the Earth population they have left behind. Which of the following phenomena has left its mark on this population? A) founder effect B) bottleneck effect C) high rates of mutation D) natural selection