Which system relies on the activity of both skeletal and smooth muscle?

a. skeletal
b. sensory
c. respiratory
d. nervous
e. endocrine


ANSWER: c

Biology & Microbiology

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Unsaturated fatty acids are those containing carbon-carbon ________ bonds.

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

Biology & Microbiology

The phase at the end of an action potential when the membrane potential becomes more negative than it is at rest is the ________ phase.

A) threshold B) depolarizing C) repolarizing D) hyperpolarizing E) refractory

Biology & Microbiology

When both dominant and recessive alleles are present within a single nucleus, the organism is for the trait

a. diploid b. haploid c. homozygous d. heterozygous

Biology & Microbiology

Enzymes work by _____.

a) lowering the activation energy of a reaction and thus speeding up the reaction b) changing the free energy of a reaction and thus speeding up the reaction c) raising the activation energy of a reaction and thus speeding up the reaction d) lowering the delta G of a reaction and thus speeding up the reaction e) raising the delta g of a reaction and thus speeding up the reaction

Biology & Microbiology