A researcher detects an increase in the amount of natural killer cells in a laboratory rat and concludes that ________

A) the rat has, or recently had, a viral infection
B) the rat does not have any cancerous tumors
C) the rat's lymphatic system is not functioning properly
D) the rat's internal innate defenses are weakened


A

Biology & Microbiology

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Indicate whether the statement is true or false.

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a. haploid. b. male or female only. c. hermaphroditic. d. asexual. e. none of the above

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Before another action potential “spike” can occur

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Why is the sense of smell associated with memories and emotions?

What will be an ideal response?

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