Which of the following best describes sensory transduction?
A. The analysis of a nerve impulse by the brain.
B. The conversion of a stimulus into a nerve impulse by using a receptor.
C. The detection of an environmental stimulus by a nerve receptor.
D. The conversion of a nerve impulse into a stimulus by using a receptor.
Answer: B
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Which of the following traits is NOT found in both fungi and animals?
A. multicellular B. consumers C. heterotrophic D. saprotrophic
Roots exhibit negative gravitropism whereas stems exhibit positive gravitropism.
a. true b. false
What is meant by the term cotransformation?
A) An F? cell can become F+ several times in a life cycle. B) Cotransformation occurs when several linked genes are transformed simultaneously. C) Several pieces of DNA can form heteroduplexes in a cell. D) More than one phage infects a bacterial cell. E) A cell can pick up more than one F factor.
Entropy means that _________.
A. the quantity of usable energy declines with each transformation B. energy can be neither created nor destroyed C. life should be impossible D. it is not possible to observe an increase in molecular organization