Soil mineral particles that range from 0.02-0.002 mm in diameter are called ____
a. fine sand
b. humus
c. clay
d. silt
e. coarse sand
ANSWER: d
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What determines whether a carbon atom's covalent bonds to other atoms are in a tetrahedral configuration or a planar configuration?
A) the presence or absence of bonds with oxygen atoms B) the presence or absence of double bonds between the carbon atom and other atoms C) the polarity of the covalent bonds between carbon and other atoms D) the solvent in which the organic molecule is dissolved
Lianas and epiphytes are especially common in the:a
tropical rain forest. b. savanna. c. temperate grassland. d. chaparral. e. taiga.
Which fungal phylum includes organisms that are of significant value to humans, such as the yeast Saccharomyces cerevisiae, antibiotic-producing species of Penicillium, truffles, and morels?
a. Ascomycota b. Basidiomycota c. Chytridiomycota d. Glomeromycota
The energy used to generate most of the ATP formed in aerobic respiration is released when electrons are passed from NADH along a chain to ____.
A. oxygen B. acetyl CoA C. FADH D. CO2. E. NADPH