________ secrete antibodies.

A. Helper T cells
B. Plasma cells
C. Natural killer cells
D. T cells


Answer: B

Biology & Microbiology

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Beginning with the simplest level of structure, which order of organization of genetic material is CORRECT?

A. DNA, nucleotide, gene, genome, chromosome. B. nucleotide, DNA, gene, chromosome, genome. C. DNA, nucleotide, gene, chromosome, genome. D. nucleotide, DNA, gene, genome, chromosome. E. nucleotide, DNA, chromosome, gene, genome.

Biology & Microbiology

Rainfall in the Northern Hemisphere is greater than rainfall in the Southern Hemisphere

Indicate whether the statement is true or false

Biology & Microbiology

Which one of the following forms of contraception is the most effective in preventing pregnancy?

A) condom B) rhythm method C) diaphragm D) tubal ligation E) cervical cap

Biology & Microbiology

Up to 70% of travel-associated Gastrointestinal Diseases are caused by:

What will be an ideal response?

Biology & Microbiology