During resting exhalation in humans, the diaphragm ____ and the internal intercostal muscles ____
a. contracts; relax
b. relaxes; contract
c. contracts; contract
d. relaxes then contracts; contract then relax
e. relaxes; relax
ANSWER: e
You might also like to view...
Which one of the following describes an event that takes place during gene regulation at the level of the chromosome?
A. Chromatin becomes condensed in order for transcription to begin. B. Chromatin coils so it can become more accessible to the proteins that carry out transcription. C. RNA polymerase and associated proteins bind to nucleosomes. D. Chromatin is remodeled and nucleosomes are repositioned so that specific regions of the DNA can be made available for transcription. E. Cytosine bases in the sequence near the promoter of a gene become methylated in order to stimulate transcription.
A Barr body is a(n) ____
a. activated X chromosome b. inactivated X chromosome c. immature trophoblast
d. immature blastocyst e. mature blastocyst
____ during prophase of prophase I.
A. Chromosomes become visible B. Chromosomes synapse and cross-over C. Chromosomes separate D. DNA replication occurs
Starch is a long chain of sugars commonly found in foods such as corn, grain, potatoes, peas, and beans.
a. true b. false