The almost complete loss of the American chestnut tree to the chestnut blight fungus had __________
ecological impact on the moderately diverse Appalachian woodlands of which it was formerly a part.
a. little
b. great
c. moderate
d. undetectable
e. detectable.
A
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When primary producers expend energy to build new tissue, this is _____
A) net primary productivity B) the amount of energy available to consumers C) maintenance costs D) net primary productivity and the amount of energy available to consumers E) maintenance costs and the amount of energy available to consumers
One simple thing that you can do to help safeguard the environment is to eat a diet consisting only of organisms that are
A) producers. B) primary consumers. C) secondary consumers. D) a mix of producers and consumers.
Which statement is true about two reactions that are coupled?
A) One reaction will normally not occur without the other. B) One is always exergonic and the other is always endergonic. C) Only oxidation-reduction reactions can be coupled. D) Coupled reactions are always driven by the ATP to ADP conversion.
Which of the following is NOT a characteristic of anatomical position?
A) Feet are together B) Head is turned to the right C) Hands are at the sides of the body D) Palms face forward