Near the summer solstice, the north pole is in daytime for several weeks at a time, with no night time.
true or false?

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis

What advantages does a pedigree have over a written passage?

Which feature would you expect to find in a population in which sexual selection depends on male competition?