The trophic pyramid, from base to top, is _____. The amount of energy that is transferred from one level to the next is _____
1.primary producers, primary consumers, consumers, top consumers; 10%
2.primary producers, primary consumers, consumers, top consumers; 50%
3.top consumers, consumers, primary consumers; primary producers; 10%
4.top consumers, consumers, primary consumers; primary producers; 50%
1
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What is the most visible manifestation of eutrophication?
a. Hypoxia b. Decomposition c. Nitrogen fixation d. Plankton bloom
All metamorphic rocks have a foliated texture.
Answer the following statement true (T) or false (F)
The combined albedo of Earth and the atmosphere is approximately ____ percent
a. ?4 b. ?10 c. ?30 d. ?50 e. ?90
Which of the following is not a member of the Order Carnivora?
A) Sea otters B) Polar bears C) Sperm whales D) Seals E) Sea lions