T lymphocytes that have both CD4 and CD25 are (cytotoxic/helper/regulatory) T cells

What will be an ideal response?


regulatory
Bloom's Taxonomy: Knowledge
Section: Elements of Adaptive Immunity
Learning Outcome: 16.14

Biology & Microbiology

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Which of the following best describes how cheetahs are adapted to deal with the heat generated by their extreme sprint speeds?

A. They can store up to 60 times the heat generated at rest, but only for short periods. B. They can store up to 60 times the heat generated at rest for long chases. C. They can store about twice the heat generated at rest for long chases. D. They can store up to 100 times the heat generated at rest, but only for short periods. E. They can store about 20 times the heat generated at rest for long chases.

Biology & Microbiology

The prefrontal area of the human frontal lobe is an association area that is most responsible for human brain's ability to carry out which three functions?

A. formulating appropriate behaviors B. critical thinking C. regulating hunger, thirst, and sleep D. coordinating muscle movements E. reasoning

Biology & Microbiology

Three species that arose as a result of adaptive radiation are organized on a cladogram. On this cladogram, two of the species would likely share several characters not present in the third.

a. true b. false

Biology & Microbiology

Which of the following statements about steroid hormones is NOT true?

A. The hormone-receptor complex can bind to chromatin. B. Estrogen is a steroid hormone. C. Steroid hormones act faster than non-steroid (peptide) hormones. D. The hormone-receptor complex can enter the nucleus. E. Steroid hormones do not bind to cell surface receptors.

Biology & Microbiology