Zebra mussels are native to poland and the soviet union. they were probably transported to the united states via trans-oceanic vessels. with no natural predators in the united states, zebra mussels

a)
will eventually die out due to lack of food supplies.

b)
caused a huge decline in native clam and mussel populations.

c)
compete unsuccessfully with native mussels and quickly die.

d)
successfully share the niche with native mussels and clams.

Which of the following statements best describes the relationship between the environment and human health? a. the environment is the only factor that affects human health. b. many aspects of the environment can have an impact on human health. c. human health is impacted by changes in climate. d. the environment has no impact on human health. select the best answer from the choices provided

During the day, plants produce by splitting water molecules in the light-dependent reactions of photosynthesis. at the same time, plants use cellular respiration to produce some of the needed by the light-independent reactions to make sugars. during the night, plants produce because takes place.

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time