The purpose of performing CPR on a person who has experienced sudden cardiac arrest is to ____
a. restart their heart
b. ensure an oxygen supply to their brain
c. keep their lungs inflated
d. restart their heart and ensure an oxygen supply to their brain
e. restart their heart and keep their lungs inflated
ANSWER: b
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A ________ consists of an organism's common ancestor and all of its descendents
a. phylogenetic group b. phenetic group c. monophyletic group d. gene pool
Detection of allergens by mast cells causes ____
a. release of histamine and cytokines b. decreased mucous secretion c. widening of the airways d. skin rashes e. cell-mediated immune responses
Mushrooms that we eat are technically referred to as:
a. basidiospores. b. basidiocarps. c. myceliae. d. hyphae. e. gills.
Eukaryotic replication differs from prokaryotic replication, because eukaryotic replication
A) has multiple replication initiation sites. B) has more DNA to copy. C) involves more protein factors. D) takes longer to copy. E) involves only one circular chromosome.