Which of the following bridges the gap
between a neuron sending a message and the
neuron receiving it?
a. threshold value
b. action potential
c. transmitter molecules
d. a neurohormone
e. all of these
C
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Which of the following involves an increase in entropy?
A) hydrolysis B) reactions that join monomers C) polymerization D) chemical evolution
Which of the following types of inhibitors is(are) likely to bind to the active site of an enzyme? Select all correct choices
A. an irreversible inhibitor B. a competitive inhibitor C. a non-competitive inhibitor
Which of the following is true of a dominant allele?
1.It is expressed over the recessive allele in the heterozygous condition. 2.It is more common than the recessive allele. 3.It produces a better trait than the recessive allele. 4.It will eventually replace the recessive allele.
Which structure, A, B, C, or D, serves as the site where the embryo and fetus will attach, receive nourishment, and grow?
1.A
2.B
3.C
4.D