A single oak tree can support hundreds of beetles, caterpillars and other primary consumers. Such a phenomenon is an example of
A. a pyramid of biomass.
B. excessive levels of primary production.
C. an unusually diverse group of primary consumers.
D. primary parasitism.
E. an inverted pyramid of numbers.
E. an inverted pyramid of numbers.
Biology & Microbiology
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________ are small oligonucleotides, 20—30 nucleotides in length, that bind specifically to mRNA and stop translation.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
Antibodies are classified as
a. nucleoproteins. b. immunoglobulins. c. steroids. d. carbohydrates. e. lipids.
Biology & Microbiology
What acidic, absorbent bryophyte is used as an additive to planting mixes to help soil retain moisture?
a. peat moss b. liverwort c. hornwort d. club moss e. cap moss
Biology & Microbiology
From the collecting duct, urine first goes to the ureter.
a. true b. false
Biology & Microbiology