The remaining energy in the producer level that is available for consumers is the
A. gross primary consumption.
B. net primary consumption.
C. gross primary production.
D. net primary production.
Answer: D. net primary production.
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Some scientists believe that RNA was the first information storage molecule because ____
a. some viruses use RNA as their information storage molecule b. RNA can be an enzymatic catalyst as well as an information storage molecule c. amino acids cannot form peptide bonds without ribosomes to catalyze their formation d. RNA is a less stable molecule than DNA e. proteins are made of far more amino acid monomers (over 20) than RNA (4)
Which of the following are in order from primary
producer to 4th trophic level? a. grass: coyote: bird: grasshopper b. coyote: bird: grasshopper: grass c. bird: grasshopper: grass: coyote d. grass: grasshopper: bird: coyote e. none of these
Which of the following statements about glycolysis false?
A) Glycolysis has steps involving oxidation-reduction reactions. B) The enzymes of glycolysis are located in the cytosol of the cell. C) Glycolysis can operate in the complete absence of O2. D) The end products of glycolysis are CO2 and H2O. E) Glycolysis makes ATP exclusively through substrate-level phosphorylation.
Forests are considered carbon storage sinks because ________.
A. carbon dioxide is released into the atmosphere through the stoma of plants B. plants are energy plantations C. plants swap carbon dioxide for oxygen from the atmosphere D. carbon dioxide is used in the Calvin cycle to make glucose, which is used to make wood and other tree molecules.