Conifers and pines both have needlelike leaves, with the adaptive advantage of _____
A) increased surface area, increasing photosynthesis
B) increased surface area, increasing gas exchange
C) decreased surface area, reducing gas exchange
D) decreased surface area, reducing water loss
D
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Carrier molecules are utilized for ____
a. active transport only b. passive transport only c. both active and passive transport d. osmosis e. transport of all types of molecules
The diastolic pressure for a normal young adult is
a. 60 mm Hg. b. 80 mm Hg. c. 100 mm Hg. d. 120 mm Hg. e. 140 mm Hg.
In comparison to proteins that are NOT tolerant of high salt content, halophilic proteins often contain ________ hydrophobic amino acids and ________ basic amino acids
a. more / more b. more / fewer c. fewer / more d. fewer / fewer
In saltatory conduction, nerve impulses jump from one exposed region of the axon to another. This exposed region is called the ________
A) interneurons B) motor end plate C) node of Ranvier D) Schwann cell gap