The process where the organism with the best traits survives and passes on its DNA is: Evolution

Adaptation

Natural Selection

Variation

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.

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous

The part of the eye that closes and opens to let light in is .