If the following are placed in the order of occurrence, which would be the third step?

a. diapedesis
b. digestion
c. formation of a phagosome
d. formation of a
phagolysosome


Answer: c. formation of a phagosome

Biology & Microbiology

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Initiation factors are ____ that assist in the initiation of transcription

a. mRNAs b. proteins c. tRNAs d. amino acids e. snRNPs

Biology & Microbiology

In skeletal muscle contraction, which of the following acts to allow the crossbridge cycle to occur

when it flows into the cytosol through open ion channels?

a. troponin b. Ca2+ c. tropomyosin d. ATP e. acetylcholine

Biology & Microbiology

Humans are least closely related to the

a. chimpanzee. b. orangutan. c. gorilla. d. tarsier. e. gibbon

Biology & Microbiology

Why is it helpful to think about the moment conditions of a simple linear regression even if OLS yields the same estimates?

A. The moment conditions will get the smaller standard errors. B. The moment conditions establish causality whereas OLS just estimates correlation. C. The moment conditions are easier to program in Excel. D. The moment conditions facilitate assessing assumptions about causality.

Biology & Microbiology