Asked by Fernando Ortiz on May 03, 2024
Verified
Which existing reptile group is most closely related to birds?
A) crocodilians
B) lizards
C) snakes
D) tuataras
E) turtles
Crocodilians
Large aquatic reptiles that include crocodiles, alligators, caimans, and the gharial, known for their tough skin, sharp teeth, and strong jaws.
Reptile Group
A category of ectothermic, vertebrate animals primarily characterized by their ability to lay eggs on land and having scales or scutes.
Birds
A group of endothermic vertebrates characterized by feathers, beaks without teeth, laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
- Differentiate vertebrate categories by recognizing their distinct characteristics.
- Comprehend the evolutionary connection among fish, amphibians, reptiles, birds, and mammals.
Verified Answer
MM
Mikey McClungMay 09, 2024
Final Answer :
A
Explanation :
Birds and crocodilians are both members of the larger clade Archosauria, which also includes extinct dinosaurs and pterosaurs. While birds are more closely related to theropod dinosaurs than to crocodilians, crocodilians are still the closest living relatives of birds among the reptiles.
Learning Objectives
- Differentiate vertebrate categories by recognizing their distinct characteristics.
- Comprehend the evolutionary connection among fish, amphibians, reptiles, birds, and mammals.