Ram ventilation is used by ________ during respiration.

A. whales
B. salamanders
C. tuna
D. frogs
E. penguins


Answer: C

Biology & Microbiology

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The difference between the two atoms in Figure 2-1 is:


a. pH.
b. the number of electrons.
c. the number of protons.
d. the number of neutrons.
e. electrical charge.

Biology & Microbiology

All of the following are used in making monoclonal antibodies EXCEPT which one?

A) mouse T cells from thymus B) mouse B cells from spleen C) specific antigen injected into mouse D) myeloma (cancer) cells E) cell culture media for hybridoma cells

Biology & Microbiology

Freshwater is most likely to become contaminated or polluted by ________ from urban and rural environments

Fill in the blank(s) with correct word

Biology & Microbiology

If a restriction digestion is performed on two samples and most of the fragments produced do not match between samples, what can be said about these two samples?

A) These samples come from closely related organisms B) These samples do not come from closely related organisms

Biology & Microbiology