Multiple Choice (WORTH 50 POINTS ) (02.02 MC)
Which statement best explains why each river has its own set of characteristics?
O A river supports different organisms, depending on where it flows.
O A river absorbs oxygen from the atmosphere as it flows downhill,
O Rivers interact with the ecosystems through which they pass.
O Rivers flow downhill, pulled by gravity toward the sea.

Which of the following is the best definition of aerobic respiration? o a. the cellular process that releases energy by breaking down glucose o b. physical activity that involves the repeated motion of large muscle groups o c. physical activity that increases heart rate and breathing rate o d. the cellular process that converts solar energy to chemical energy

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.