These models represent molecules that play a role in the immune system.
In which two ways do these molecules fight pathogens in the body?
A. They carry pathogens out of the body.
B. They eat pathogens that attack the body.
C. They recognize specific pathogens in the body.
D. They bind to pathogens that enter the body.

Which of the following represents a negatively charged ion? of t 7

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime

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.