The optimum pH for growth of most species of bacteria is

A. pH 5.
B. pH 7.
C. pH 9.
D. pH 6.


B

Biology & Microbiology

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The "9 + 0" cilia arrangement is associated with

A) eubacteria. B) cyanobacteria. C) cilia lining the respiratory tract. D) flagella on sperm cells. E) animal embryonic development.

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Summarize Fredrick Griffith's, Oswald Avery's, and others' experimental search for a treatment for pneumonia

What will be an ideal response?

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Although the genetic contributions of egg and sperm

nuclei are equal, the egg contributes more to cell differentiation because of a. its energy reserves. b. its cytoskeletal elements. c. its specialized proteins. d. its maternal messages. e. all of these.

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The only body fluid that can transmit hepatitis B virus is blood.

Answer the following statement true (T) or false (F)

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