Some of the most dramatic evidence for evolution has come from human agriculture. One of the most highly artificially selected crop plants is
A. potatoes.
B. peas.
C. tomatoes.
D. asparagus.
E. corn.
Answer: E
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Feces from Canadian geese can
a. soil shoes. b. stain clothes. c. pollute bodies of water. d. cause infections. e. cause all of these
The maintenance of genetic variation in sea-squirts (Botryllus scholosseri) has been studied by Richard Grosberg. Interestingly, these sea-squirts have two genetically determined life history forms
In one, called ________ the modules in a colony reproduce once and then die. In the other morph, called ________ colonies reproduce sexually at least three times before they die. Fill in the blank(s) with correct word
Which type of medium suppresses the growth of unwanted bacteria and encourages growth of desired microbes?
A. differential media B. complex media C. selective media D. enrichment media
Choose one of the three pigeon varieties pictured in the figure above and describe what steps breeders may have gone through to produce the unusual characteristics depicted
What will be an ideal response?