The figure shows the evolutionary diversification of the largest clade of herbivorous beetles with the group of plants on which they specialize. Choose the true statements about the evolution of species richness in herbivorous beetles.
_____ Feeding on conifers evolved earlier than feeding on angiosperms.
_____ Feeding on cycads evolved earlier than feeding on angiosperms.
_____ Diversification of the angiosperms may have led to diversification of herbivorous beetles.
_____ The multiple, independent evolution of herbivory in beetles is closely linked to their great species richness.
__X__ Feeding on conifers evolved earlier than feeding on angiosperms.
_____ Feeding on cycads evolved earlier than feeding on angiosperms.
__X__ Diversification of the angiosperms may have led to diversification of herbivorous beetles.
_____ The multiple, independent evolution of herbivory in beetles is closely linked to their great species richness.
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The division of the plasma membrane begins with a(n) ____
a. exocytosis reaction b. cleavage furrow c. membrane slice d. membrane ridge e. cleavage cycle
In DNA sequencing, the different sized fragments created are separated from each other by
____________________. Fill in the blank(s) with the appropriate word(s).
The DNA sequencing reaction uses the enzyme DNA polymerase, a primer, and ____________________
a. a restriction enzyme b. a self-replicating vector c. a plasmid RNA d. the four deoxynucleotides found in DNA e. the four ribonucleotides found in RNA
One of the most straightforward ways of detecting the presence of bacteria in food is to use ________.
A) a standard plate count B) spectrophotometry C) staining