1. DDT is only hazardous to organisms that come in contact with fish eating humans. 2. The amount of DDT increases up the food chain causing humans to consume chemicals that
may harm their health
3. The amount of DDT decreases as you go up trophic levels.
4. DDT is only harmful to the highest trophic level,

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.