Which of the following bacteria might be responsible for the formation of petechiae in a host?

A) Neisseria meningitidis
B) Escherichia coli O157:H7
C) Klebsiella
D) Proteus mirabilis


Ans: A) Neisseria meningitidis

Biology & Microbiology

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As temperatures rise, photorespiration activity ____, because gas exchange via the ____ is inhibited

a. increases; grana b. decreases; grana c. increases; stroma d. decreases; stroma e. increases; stomata

Biology & Microbiology

Consistent levels of calcium and phosphate must be maintained in the blood. Low levels of these ions in the blood would therefore, stimulate the activity of ________.

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

Biology & Microbiology

The difference between chromatin material and chromosomes is 

A. their structure. B. the kinds of atoms that they contain. C. where you find them. D. that one is a gas and the other is a liquid.

Biology & Microbiology

Which of the following is filtered from blood but NOT normally found in urine?

a. water b. red blood cells c. H+ d. amino acids e. urea

Biology & Microbiology