A small wooded area was cleared for a new building, but then the builders went bankrupt. Over the ensuing years, plants and animals moved back into the plot in a process called ________
A) climax community
B) biological magnification
C) secondary succession
D) primary succession
C
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You have a polymer of DNA with 10 adenine bases followed by 10 cytosine bases. If that strand bonded to a strand of 20 thymine bases, how would the double helix shape vary from a typical DNA double helix?
A) The double helix would be longer than normal. B) The double helix would be shorter than normal. C) One strand of the double helix would be longer than the other strand. D) The width of the double helix would vary along the length of the strand.
A behavior that has a genetic basis is subject to evolution by __________. Fill in the blank(s) with the appropriate word(s)
What is the structure labeled as A in the accompanying figure?
a. germinating spore b. gametangium of a plant c. gametangium of an alga d. megasporangium of an alga e. megasporangium of a plant
Thrush can be one sign of HIV/AIDS during the symptomatic stage.
a. true b. false