Reptiles excrete their nitrogen waste the form of ? Group of answer choices

Uric acid diluted with water as urine

noen of these they don't excrete nitrogen waste

urea diluted with water as urine

ammonia through their gills like fish

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

9. the history of life on earth is recorded in

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.