Students placed equal amounts of bacteria on fifteen identical agar plates containing the same amounts and types of nutrients. five of the plates were kept at 0ºc, five were kept at 45ºc, and five were kept at 22ºc (room temperature). which of the following was probably the hypothesis for this experiment? a. the growth of bacteria increases as temperature increases. b. the type of nutrient causes bacteria to grow faster at higher temperatures. c. the size of the plates determines the temperature of the bacteria. d. the temperature of bacteria is determined by the bacteria's growth.

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.