What secretes cytokines that enhance the activity of B cells, cytotoxic T cells, suppressor T cells, and helper T cells?

A) macrophages
B) suppressor T cells
C) helper T cells
D) B cells
E) cytotoxic T cells


Answer: C) helper T cells

Biology & Microbiology

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Vaccinations involve exposure to an antigen to elicit __________.

What will be an ideal response?

Biology & Microbiology

Although they are two different types of connective tissue, cartilage and bone have what feature in common?

a. lacunae and Haversian canals b. canaliculi and Haversian canals c. lacunae and canaliculi d. lamellae only e. lacunae only

Biology & Microbiology

What is our null hypothesis for genotype ratios? Yes, that's correct!

a. 9:3:3:1 b. 1:1:1:1 c. 3:1 d. 9:7

Biology & Microbiology

Adaptations that can be passed from generation to generation can lead to __________ of a population of a species.

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

Biology & Microbiology