Archaea differ from Bacteria in all of the following EXCEPT

A. DNA replication.
B. cell wall composition.
C. the presence of a nucleoid region.
D. gene expression.
E. plasma membrane make up.


Answer: C

Biology & Microbiology

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Charles Darwin and Alfred E. Neumann co-developed the theory of evolution by natural selection.

Indicate whether the statement is true or false

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Why do women have a higher frequency of bladder infections than men? a. A woman's urethra is shorter than a man's which increases the likelihood of bacterial growth

b. Semen cleans a man's urethra to prevent bacterial infections. c. A woman's urethra is longer than a man's which increases the likelihood of bacterial growth. d. It is pure luck. e. Men have natural antibodies which will decrease the possibility of a bladder infection.

Biology & Microbiology

The anterior pituitary gland receives hormone messages from the hypothalamus via ________.

a. a capillary network b. neurons that extend from the hypothalamus to the pituitary c. Schwann cells d. both a & b

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This experiment employed a 1% agarose gel, and very large DNA fragments remained at the top of the gel. If a 0.1% agarose gel was used, instead of the 1% agarose gel, would the large DNA fragments migrate further down the gel?

A) Yes B) No

Biology & Microbiology