Amphibians are completely dependent on an

aquatic environment for



a. respiration.
b. feeding.
c. reproduction.
d. respiration and reproduction.
e. respiration, reproduction, and feeding


C

Biology & Microbiology

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Photoautotrophs are the only organisms that can incorporate (fix) carbon dioxide into biomolecules.

Answer the following statement true (T) or false (F)

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The equation CaSiO3 + CO2 CaCO3 + SiO2 takes into account which of the following processes associated with the long-term carbon cycle?

A. volcanism B. chemical weathering C. subduction D. plate tectonics E. bacteria-based oxidation

Biology & Microbiology

The most immediate source of energy for reformation of ATP in muscle cells is

a. aerobic respiration. b. mitochondrial pathways. c. electron transport phosphorylation. d. creatine phosphate. e. anaerobic fermentation.

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In a population of frogs, RR homozygotes produce an average of 5 offspring that survive to reproduce. Rr frogs produce 4, and rr frogs produce 1. The fitness of the three genotypes w11, w12, and w22 are respectively

A) 5, 4, and 1. B) 0.5, 0.4, and 0.1. C) 1.0., 0.8, and 0.2. D) 0.5, 1.0, and 0.1. E) None of these

Biology & Microbiology