The resurrection plant
(a) is a species of Selaginella.
(b) grows in the desert Southwest of the United States.
(c) is a member of the phylum Lycophyta.
(d) all of the above.
(d) all of the above.
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Treponema pallidum
A. is the organism that causes syphilis. B. is a spirochete. C. can be more easily viewed with dark-field illumination. D. has become less virulent over time. E. All of the above are correct.
Which of the following statements regarding the process of speciation is correct?
(A) Speciation occurs so slowly that scientists have never observed the emergence of a new species (B) Speciation only occurs slowly as small genetic changes accumulate from generation to generation (C) Speciation can occur as a result of changes in a single gene (D) Speciation requires the geographic isolation of a small population from a larger parent population
A water strider walks across a pond on________
Fill in the blank(s) with the appropriate word(s).
7. A pharmaceutical company tests a new drug to relieve arthritis. Some of the subjects receive a red capsule with the drug, while others receive a blue capsule with filler and no drug. Is this an example of experimental vs. control group where the
control group receives a placebo? Yes No