Which muscle group is composed of mainly slow-twitch (type I) fibers?

A. Deltoid muscle of the shoulder
B. Rectus muscles that move the eye
C. Erector spinae muscles of the back
D. Small muscles of the hand


Answer: C. Erector spinae muscles of the back

Biology & Microbiology

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A. Bacillus thuringiensis B. Escherichia coli C. Listeria monocytogenes D. Pseudomonas syringae E. Saccharomyces cerevisiae

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Gene duplication _________ genetic variation and natural selection _________

Fill in the blank(s) with the appropriate word(s).

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Genetic counseling is the best advice that a physician can give a person about his or her risk of having a child with a genetic disorder while lacking precise statistical evidence

Indicate whether the statement is true or false

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Enzymes accomplish effective catalysis by _______.

a) being present in such large amounts b) overcoming the activation energy barrier c) changing the thermodynamics of the reaction d) increasing the activation energy required

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