Which of the following organisms is a prokaryote?

A) seaweed
B) a slime mold
C) an amoeba
D) a bacterium


Answer: D) a bacterium

Biology & Microbiology

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The pairwise map distances for four linked genes are as follows: A-B = 22 m.u., B-C = 7 m.u., C-D = 9 m.u., B-D = 2 m.u., A-D = 20 m.u., A-C = 29 m.u. What is the order of these four genes?

A) ABCD B) ADBC C) ABDC D) BADC E) CADB

Biology & Microbiology

The scorpion sting is described as one of the most painful stings. The pain is associated with the neurotoxins from the sting that cause the sodium channels to

A. remain open. B. remain closed. C. open and close repeatedly. D. misfire. E. None of the answer choices is correct.

Biology & Microbiology

Which blood vessel is next to living cells in nearly all body tissues?

a. venules b. arterioles c. capillaries d. veins e. arteries

Biology & Microbiology

Compare and contrast type I hypersensitivity with type IV hypersensitivity with respect to reaction time, mediators, and cells involved

What will be an ideal response?

Biology & Microbiology