A fly's wings flap when ________
a. muscles in the wings contract and relax
b. blood surges into and out of the wings
c. muscles in the thorax contract and relax, changing its shape
d. muscles contract against a hydrostatic skeleton
c
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Thermotogae can grow anaerobically on which of the following?
A. Protein digests and carbohydrates B. Cellulose C. Methane and methanol D. Lignin
When the sympathetic nervous system is triggered glycogen is broken down to glucose to provide more energy.
a. true b. false
A given enzyme works on
any number of different substrates. one of two possible substrates. no substrate. one type of substrate. inhibitors.
A form of diffusion in which the molecules pass through a protein instead of between the phospholipids is called ________
A) diffusion B) facilitated diffusion C) active transport D) osmosis