During inspiration the nose is not involved in:
a. removing bacteria from the air.
b. warming the air.
c. humidifying the air.
d. removing oxygen from the air.
e. removing dust from the air.
D
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A species that faces extinction in all or part of its range is:
a. endangered b. threatened c. rare d. endemic e. exotic
The action of a new drug is unknown, so you test various aspects of eukaryotic cell processes looking for an effect. You notice that the survival of cells exposed to this drug is very low
Further analysis shows that some proteins and mRNAs are much longer than they should be. One hypothesis is that the drug interferes with A) transcription termination signals. B) spliceosome activity. C) ribosomes. D) nucleoli. E) either transcription termination signals or spliceosome activity.
Which of the following adversely affects the ozone layer?
A. Oil B. Plastics C. Chlorofluorocarbons D. Coal and natural gas E. Greenhouse gases
Which of the following is considered to be a plant behavior?
A. response to sunlight. B. response to plant hormones. C. response to touch.D. response to gravity. E. all of the choices.