Atourist bus is carrying passengers from the bottom of a hill to the top. the people, the bus, and the luggage can be analyzed as a
the total amount of energy in the
as the bus travels. this situation happens because some
the kinetic energy changes to
energy because of friction between the tires and the road.

As soon as possible this assignment is due in 5 minutes atoms in a molecule are bonded together by sharing, gaining, or a. photons b. protons c. neutrons d. energy f. electrons

Which of the following best describes the relationship between glucose and complex molecules such as hormones?

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.