A fungal ________ is light enough to be carried for miles in the wind, dispersing the fungus to new areas.
Fill in the blank(s) with the appropriate word(s).
spore
A fungal spore is light enough to be carried for miles in the wind, dispersing the fungus to new areas.
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Most bivalves are:
a. predators. b. parasites. c. filter feeders. d. grazers. e. detritivores.
Which of the following would be a modern
example of Lamarckianism? a. A strain of houseflies resistant to insecticides emerges. b. Squirrels separated by a river are found to be unable to interbreed. c. A son is born with a portion of his right index finger missing--the same portion that was severed from his father's hand in an accident. d. A strain of houseflies resistant to insecticides emerges, and squirrels separated by a river are found to be unable to interbreed. e. A strain of houseflies resistant to insecticides emerges; squirrels separated by a river are found to be unable to interbreed, and a son is born with a portion of his right index finger missing--the same portion that was cut off from his father's hand in an accident.
Which of the following statements is false?
A) There are more than 60 different kinds of amino acids present in cells. B) The R group of amino acids differs from one amino acid to another. C) Only around 20 amino acids are used in protein synthesis. D) Equal amounts of D- and L-amino acids are found in cells. E) An amino acid has an N-terminus, a C-terminus, and an R group.
Operons ___________________________
(a) are commonly found in eukaryotic cells. (b) are transcribed by RNA polymerase II. (c) contain a cluster of genes transcribed as a single mRNA. (d) can only be regulated by gene activator proteins.