Which of the following does NOT contribute to the rapid movement of gases into and out of the blood within the lungs?

A) thin membrane
B) rapid blood flow
C) permeability of the membrane
D) large surface area
E) concentration gradient


Ans: B) rapid blood flow

Biology & Microbiology

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Which portion of Figure 43-3 would be connected to the oval window?


a. 1
b. 2
c. 3
d. 6
e. 8

Biology & Microbiology

The hypothesis that explains the origin of eukaryotic cells as the result of two or more simpler cells developing a relationship with one another is called:

A) symbiosis B) evolution theory C) endosymbiont theory D) panspermia

Biology & Microbiology

A single B lymphocyte can recognize multiple antigenic determinants

Indicate whether the statement is true or false

Biology & Microbiology

The ________ is a microtubule structure that binds to sister chromatids to separate them in anaphase

Fill in the blank(s) with correct word

Biology & Microbiology