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

Biology & Microbiology

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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

Biology & Microbiology

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

Biology & Microbiology

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

Biology & Microbiology

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.

Biology & Microbiology