Erasmus Darwin, in his discussion of evolutionary possibilities, included all of the following EXCEPT
A. changes during the development of organisms.
B. comparative anatomy of plants and algae.
C. animal breeding by humans.
D. vestigial organs.
Answer: B
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Exchange of genetic material in ciliates is known as
A. macronucleosis B. micronucleosis C. conjugation D. panmixis E. myxomycetosis
All enzymes are which type of organic molecule?
a. lipids b. minerals c. carbohydrates d. vitamins e. proteins
Potable water is water that
A) is considered safe to drink because it is completely sterile. B) contains biosensors. C) contains a dangerous number of microorganisms. D) is transferred from one place to another. E) contains low amounts of microorganisms and is considered safe to drink.
In an atom, the number of protons always equals the number of
A. neutrons and protons. B. neutrons. C. neutrinos. D. electrons. E. quarks.