The _____ is the most efficient route of water movement in plants, while the _____ is the most select
A) apoplast: symplast
B) apoplast: transmembrane
C) symplast apoplast
D) transmembrane: symplast
B
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The reduction of sulfate for use in the production of compounds such as cysteine is called ________ sulfate reduction.
A. demodulatory B. assimilatory C. dissimilatory D. amodulatory
Johann Miescher is credited with
a. proposing DNA as the hereditary material. b. determining that proteins are the physical basis of inheritance. c. defining the laws of inheritance. d. discovering DNA. e. determining that proteins are composed of unlimited combinations of twenty amino acids.
Compared with a shade-intolerant plant, a shade-tolerant plant
A) has a greater SLA. B) grows faster. C) requires a higher intake of CO2 to balance losses of CO2 from respiration. D) allocates very little carbon to leaf tissue.
The human body temperature is relatively constant. Which is a feedback mechanism that helps the human body maintain its normal temperature in a cold environment?
A. Water is released from the skin. B. Muscles shake in small movements. C. The rate of heart beats slows. D. The lungs take in additional air.