Sclereids are cells that:a
are found in wood and bark.
b. conduct water and dissolved minerals.
c. are usually found in nut shells and pits of stone fruits.
d. conduct dissolved sugars.
e. form cytoplasmic connections between cells.
C
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The majority of human infections with Campylobacter species are caused by:
a. direct contact with carriers of the bacte-rium. b. contamination of food, milk, or water with animal feces. c. multiplication of the organism in food products. d. direct contact with persons infected with the bacterium.
During anaerobic decomposition of organic matter with carbon dioxide as the terminal electron acceptor, the primary gas(es) produced is/are
A. oxygen. B. hydrogen sulfide. C. methane. D. hydrogen. E. methane AND hydrogen.
ATP
a. easily gives up phosphate groups. b. forms when ADP covalently bonds to phosphate. c. is the energy currency in the cell’s economy. d. is made by all cells. e. is/does all of these.
All of the populations of different species that occupy and are adapted to a given area are referred to
by which term? a. biosphere b. community c. ecosystem d. niche e. habitat