Compare the shapes of the organisms that did and did not have cell walls. what effect does the cell wall have on the shape of the organism? (amoeba, paramecium, euglena and cardiac muscle did not have a cell wall, and spirogyra and onion root did) why did the animal and plant cells lack cilia, flagella, or other means of locomotion? (again organisms are amoeba, paramecium, euglena, spirogyna, onion root, and cardiac muscle) (euglena has flagella, and paramecium has cilia)

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.