A type of lymphocyte called a(n) ________ detects cells with abnormal surface proteins and kills them.

A. eosinophil
B. NK cell
C. neutrophil
D. basophil
E. mast cell


Answer: B

Biology & Microbiology

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A plant with its floral structures arranged around a central axis has _________________ flowers. 

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

Biology & Microbiology

A farmer has a localized, painful skin infection. Cultures are set up, and <-hemolytic, cata-lase-negative, and gram-positive bacilli are isolated. Based on this information, which of the fol-lowing biochemical results are expected—urease, H2S production in TSI, and nitrate reduction?

a. Positive urease, positive TSI, and positive nitrate b. Positive urease, negative TSI, and nega-tive nitrate c. Negative urease, positive TSI, and nega-tive nitrate d. Negative urease, negative TSI, and nega-tive nitrate

Biology & Microbiology

White muscle is exhausted faster than red muscle because white muscles

A) rely only on anaerobic glycolysis for energy. B) have fewer mitochondria. C) have no mitochondria. D) cannot make ATP.

Biology & Microbiology

The mechanism of action of RhoGAM is to (activate/neutralize/prevent) an anti-Rh immune response

What will be an ideal response?

Biology & Microbiology