Which of the following is an example of r-selected organism?
A. Coconut palm
B. Flies
C. Elephants
D. Humans
E. Horses
Answer: B
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Which of the following organs or tissues can ONLY use glucose as a source of energy?
A. heart B. skeletal muscles like the bicep C. brain D. liver E. spleen
Imprinting, habituation, and conditioning are all examples of
A. canalization B. fixation C. maturation D. learning
Ionizing radiation can also cause damage to the nitrogenous bases of DNA. Repair of the damaged bases takes several steps. Which of the following repair mechanisms can be used to repair the nitrogenous bases of DNA damaged by ionizing radiation?
A. mismatch repair B. nonhomologous end joining C. excision repair D. direct repair
Which of the following statements regarding vision is not true?
A. Rhodopsin is found in the membrane of rods. B. Insects and birds can often see into the ultraviolet range. C. Vertebrate rods and cones hyperpolarize in response to light. D. Bright light will often produce action potentials in both rods and cones.