All cells have:

A. a nucleus.
B. genetic information.
C. internal compartments.
D. a cell wall.


Answer Key: B

Biology & Microbiology

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In the primary stage of syphilis, the initial symptom is a small, painless, reddened ulcer called a ________.

Fill in the blank(s) with the appropriate word(s).

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A study of the human ecological footprint conducted by the World Wildlife Fund in 2008 shows that ________

A) we have already exceeded the planet's biocapacity per person B) we are far below the planet's biocapacity per person C) Earth can sustain a population about double the current population D) the human population will soon crash

Biology & Microbiology

Fungi that feed on dead tissue are saprophytes

Indicate whether the statement is true or false

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Which fermentation product is important for making bread rise?

A) ethanol B) CO2 C) lactic acid D) hydrogen gas

Biology & Microbiology