Where are you most likely to find bacteria belonging to the domain Archaea?

A. a pond
B. in a hot spring
C. a beer production facility
D. a human's large intestine
E. a sewage treatment plant


Answer: B

Biology & Microbiology

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The binding of a neurotransmitter to ligand-gated Cl- channels will cause ____ in the postsynaptic membrane

a. depolarization only b. hyperpolarization c. repolarization only d. apolarization e. depolarization and repolarization

Biology & Microbiology

In what way(s) can mRNAs be processed?

A. By adding caps and tails to the ends of the mRNAs B. By splicing the exons (the coding regions) of the mRNAs in different ways C. By removing the introns (the noncoding regions) of the mRNAs D. All of the above are ways in which mRNAs can be processed

Biology & Microbiology

A scientific explanation that is tentative and testable is termed a/an:

A) observation. B) theory. C) fact. D) control. E) hypothesis.

Biology & Microbiology

Nonphagocytic (eosinophils/monocytes/NK cells) are a type of lymphocyte which produce toxins to kill abnormal cells.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology