Unlike endurance training, weight lifting will convert ____
a. slow muscle fibers to fast muscle fibers
b. fast muscle fibers to slow muscle fibers
c. fast muscle fibers from the anaerobic to the aerobic type
d. fast muscle fibers from the aerobic to the anaerobic type
e. fat to muscle fibers
ANSWER: d
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A friend of yours picks up a branch like the one pictured at the right. Knowing that you have taken a biology course and studied plants, she asks you what the plant is. Identify this branch, giving your friend the full scientific name for the plant.
What will be an ideal response?
All cells are fundamentally similar at a structural level
Using the accompanying diagram of a generalized human cell, name as many of the numbered labels as you can to illustrate this idea.
The removal of electrons and/or hydrogen atoms from a substrate is called what?
a. phosphorylation b. an enzyme-substrate complex c. metabolism d. oxidation e. reduction
Divergence time estimates based on molecular clocks are
A) best interpreted with caution, since they depend on assumptions that are difficult to test. B) likely to be correct regardless of the genes used or the groups of organisms. C) more reliable than divergence dates that are based on analysis of the fossil record.