The lowest layer of the atmosphere, from sea level to about 7.4 miles, is the:
A) troposphere. B) ionosphere. C) stratosphere. D) ozone layer.
Answer: A
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The first (capitalized) word of an organism's two-part scientific name denotes the _________.
Fill in the blank(s) with the appropriate word(s).
How did Gregor Mendel's research affect the science of his time?
A) His research was not appreciated by the scientific community until after he died. B) His focus on pea plants showed that pea plants have very few heritable traits. C) His results could predict heritability in plants but not animals. D) His research included detailed studies on polygenic traits.
The association of ribosomes with _____ invaginations would support the _____ theory.
Fill in the blank(s) with the appropriate word(s).
The choanoflagellates are in the supergroup
A. Stramenopila B. Amoebozoa C. Opisthokonta D. Alveolata E. Rhizaria