In a fetal pig, dorsal and ventral refer respectively to
a. the head and tail regions of the body.
b. the tail and the head regions of the body.
c. the upper (back) portion and the lower (underside) portion of the body.
d. the lower (underside) portion and the upper (back) portion of the body.
d
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In which year other than 2011 did the conditions not seem conducive to a rapid growth rate?
a. 2009 b. 2010 c. 2011 d. 2012
Four of the five answers listed below follow a
type I survivorship curve. Select the EXCEPTION.
a. deer b. sea turtles c. bears d. humans e. elephants
Contraction of the muscles surrounding an arteriole that decreased its diameter by 50% would
A. increase the resistance in the arteriole by approximately 50%. B. increase the resistance in the arteriole approximately 16-fold. C. not be expected to change resistance in the arteriole. D. decrease the resistance in the arteriole approximately 16-fold. E. decrease the resistance in the arteriole approximately 50%.
The induced-fit model
A) was proposed by Hans Buchner. B) distorts the shape of the enzyme and the substrate. C) is also called the lock-and-key model. D) states that enzyme–substrate interactions are rigid. E) proposes that very strong covalent bonds are formed upon substrate binding.