Resident flora of the skin tends to fluctuate over time.

A) True
B) False


B) False
Resident flora of the skin tends to fluctuate over time.

Biology & Microbiology

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The classic experiment using isolated cells from two species of sponges provided evidence that:

A. Cell adhesion molecules are species specific. B. Sponge cells posses an extracellular matrix. C. Cell adhesion molecules are non-specific. D. Sponge cells have cell adhesion molecules.

Biology & Microbiology

Which of the following would be considered to be a synapomorphy of ferns, conifers, and flowering plants?

Given the following list of characteristics:



A. chlorophylls a & b
B. vascular tissue
C. seeds
D. flowers

Biology & Microbiology

The vast majority of workers in maquiladoras and Export Processing Zones are

A) children. B) women. C) men. D) the elderly. E) people of African descent.

Biology & Microbiology

The hormone erythropoietin acts to stimulate cells that are located in the ________ of an adult

A) blood B) kidneys C) spleen D) red bone marrow

Biology & Microbiology