Kettle ponds derive from a hole left by a retreating glacier that is subsequently filled with rainwater. A certain region has a series of disconnected kettle ponds, but occasionally heavy rains flood them and create streams. Which type of animal is most likely to be present in this area as a metapopulation?
A. A dragonfly
B. A mosquito
C. A fish
D. An aquatic bird
Answer: C
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Genetic testing (select all correct choices):
A. will identify every allele of every gene you carry. B. will tell you whether or not you will contract breast cancer or Type II diabetes. C. will identify some alleles of some of your genes. D. will identify every risk factor you have for the most common types of cancer as well as for cardiovascular disease. E. none of these.
The species of Staphylococcus, which is one of the most important human pathogens, is:
a. S. lentus. b. Staphylococcus aureus. c. S. mucilaginosus. d. Staphylococcus intermedius.
The largest of all the whales is the:
a. sperm whale. b. sei whale. c. humpback whale. d. blue whale. e. megalodon.
Which of the following never have cell walls?
A. algae B. animal cells C. archaea D. bacteria E. fungi