What fleshy projection is an adaptation some fish have to lure prey in?
a. Barbel
b. Antennae
c. Photophore
d. Appendage
a
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Why are molecular methods particularly useful for identification of microbes when they are difficult to grow?
A. While all microbes can (and should) be grown for identification purposes, sometimes it's simply faster to use a molecular technique. B. They AREN'T useful-growing a microbe is clearly the only way to properly identify it. C. Since all microbes use DNA, and we can sometimes detect and identify them through even very small amounts of their DNA, molecular methods allow us to identify microbes even when they can't be grown at all. D. Molecular methods are far cheaper methods than growing microbes for identification.
Which of the following is the term for salt-tolerant plants such as those found in estuaries?
a. charophytes b. glaucophytes c. halophytes d. streptophytes
The only hominid skeletal feature that is fairly clearly correlated with the ability to speak is the shape of the ________
Fill in the blank(s) with correct word
Frameshift mutations result from:a
the substitution of one base pair for another. b. the substitution of more than one base pair. c. the insertion or deletion of one or two base pairs. d. the substitution of a stop codon for an amino acid-specifying codon. e. the substitution of a start codon for an amino acid codon.