Which of the following choices shows the order in which white blood cells migrate to infected tissues?

A) Macrophages - monocytes
B) Lymphocytes - macrophages
C) Neutrophils - macrophages
D) Neutrophils - monocytes
E) Macrophages - neutrophils


Ans: D) Neutrophils - monocytes

Biology & Microbiology

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A system that compensates for pH fluctuations by donating or accepting H+ is known as a(n) ____

a. acid b. base c. salt d. buffer e. antioxidant

Biology & Microbiology

Which molecules are made during glycolysis?

A) NADH and ATP B) ADP and NADPH C) water and NAD+ D) oxygen and water

Biology & Microbiology

Which of the following statements is FALSE concerning enrichment bias?

A) Dilution of the inoculum may help to avoid enrichment bias in some cases. B) Enrichment bias is impossible to overcome in some oligotrophic environments. C) Enrichment bias resulted in the underestimation of prokaryotic diversity. D) Enrichment bias favors organisms that grow quickly.

Biology & Microbiology

Crossing over creates new ________

a. combinations of alleles b. alleles c. zygotes d. chromosomes

Biology & Microbiology