In its use in conservation efforts, lichens are
classified as an example of a(n)
a. biological magnified species.
b. endangered species.
c. biodiverse species.
d. indicator species.
e. exotic species
D
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The first life-related and carbon-based
molecule was synthesized in vitro by a German chemist. What was that molecule?
a. starch b. fructose c. acetaldehyde d. urea e. rubisco
If you wanted a grass plant to bend to the right, where would you want to apply auxin?
A. on the left side of the tip of the grass B. on the left side of the grass, a few centimeters down from the tip C. on the right side of the grass, a few centimeters down from the tip D. on the right side of the tip of the grass
Tetrahymena is a
A) fungus. B) protozoa. C) green alga. D) weed. E) bacteria.
What is the approximate age of Earth?
a. 4.6 million years b. 500 million years c. 2.7 billion years d. 3.6 billion years e. 4.6 billion years