All but which of the following are good barriers to invasion by microbes?

a. mucous membranes
b. eye secretions
c. broken skin
d. urine
e. gut bacteria


Answer: c. broken skin

Biology & Microbiology

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The human genome is different for every individual

A. true B. false

Biology & Microbiology

The central dogma describes the flow of information of gene expression as ____

a. DNA ® RNA ® protein b. RNA ® DNA c. RNA ® DNA ® protein d. protein ® DNA ® RNA e. DNA ® protein ® RNA

Biology & Microbiology

The DNA-protein complex that comprises eukaryotic chromosomes is called ________

Fill in the blank(s) with correct word

Biology & Microbiology

In regards to altruism, what way are humans like vampire bats?

A. Their altruism is based on haplodiploidy. B. They are both Chiroptera. C. They engage in reciprocal altruism. D. Their altruism is based on kin selection.

Biology & Microbiology