Current scientific thought places organisms in one of kingdoms
a. two.
b. four.
c. five.
d. six.
b
Biology & Microbiology
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Which of these categories has the shortest residence time?
a. atmosphere b. glaciers c. rivers d. soil
Biology & Microbiology
The potential capacity to produce offspring is called:a
life history traits. b. fitness. c. age structure. d. density. e. fecundity.
Biology & Microbiology
Both a spore and a gamete are reproductive cells that develop into a new plant by themselves.
a. true b. false
Biology & Microbiology
Alexander Fleming discovered the compound penicillin in 1928 after his observations on the antibacterial effects of the mold Penicillium chrysogenum on which of the following microbes?
A) Staphylococcus aureus B) Escherichia coli C) Saccharomyces cerevisiae D) Salmonella enterica
Biology & Microbiology