The biological species concept is primarily based on:
A. reproductive isolation.
B. morphological differentiation.
C. evolutionary history.
D. a genome.
Answer: A. reproductive isolation.
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Proteins that prevent inappropriate folding of newly synthesized proteins are called ____
Answer for this statement?
The layer of the vertebrate eye where photoreceptors are located is the:
a. lens b. cornea c. pupil d. iris e. retina
Which of the following statements is FALSE?
a. Digestion of a meal begins in the mouth. b. Hydrolysis of proteins begins in the stomach. c. Most hydrolysis of fats takes place in the stomach. d. Absorption of amino acids takes place in the small intestine. e. Absorption of water takes place in the large intestine.
The introduction of a new species into an area that has several different habitats and very rich resources, but no predators will likely lead to
A) mechanical incompatibility. B) adaptive radiation. C) temporal isolation. D) extinctions. E) limited speciation.