The blood cells that function in allergic reactions and inflammation, contain peroxidase and lysozyme, and particularly target parasitic worms and fungi are ________.

A. neutrophils
B. lymphocytes
C. eosinophils
D. monocytes
E. basophils


Answer: C

Biology & Microbiology

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Which of these is often used as a prophylactic measure to protect a person against future attack by a pathogen?

A) antiserum injection B) artificial passive immunity C) vaccination D) None of these are correct.

Biology & Microbiology

When creating a molecular clock, investigators often use mitochondrial DNA (mtDNA) because it mutates much more quickly than nuclear DNA.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which act(s) mainly to regulate salt and water balance?

A) mineralocorticoids B) glucocorticoids C) androgens D) oxytocin

Biology & Microbiology

The figure below shows the effect of an antagonistic pleiotropic mutation A. What would be the effect of a mutation B that delayed the onset of reproduction without changing the survival curve?

a. Genotypes carrying A and B would have a higher fitness than genotypes carrying A without B. b. Genotypes carrying A and B would have a lower fitness than genotypes carrying A without B. c. B would not have any effect on the fitness of individuals with A. d. We cannot determine the effect of B without the survival curve for individuals that are wild-type at the locus affected by A.

Biology & Microbiology