What is it called when an oxygen-starved heart muscle no longer receives enough oxygen?
a. myocardial infarction
b. atherosclerosis
c. high HDL
d. an aneurism
e. arrhythmia
a. myocardial infarction
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Each of these regions, which can be found on a multitude of different continents, is an
example of a __________.
a. disturbance b. life zone c. habitat d. niche
In what part of the life cycle does DNA
replication occur?
a. G1 b. G2 c. S d. prophase e. more than one of these
If a person had cancer that had already metastasized by the time of diagnosis, the treatment options at this point would most likely include ________
A) surgery B) radiation C) chemotherapy D) immunotherapy
Why are enzymes important to biological systems?
a. Enzymes are reuseable. b. Enzymes prevent unwanted chemical by-products from forming. c. Enzymes increase the energy barrier required of chemical reactions. d. Enzymes decrease the amount of activation energy required for chemical reactions to occur.