Reptiles and all later vertebrates share what feature?

Question

BlackTom AI · Accepted Answer

Question restatement: Reptiles and all later vertebrates share what feature?

Option a: Warm bloodedness. This is incorrect because warm-bloodedness (endothermy) is characteristic of birds and mammals, not reptiles in general. Most reptiles are ectothermic, relying on external heat sources to regulate body temperature, so this option reflects a trait not shared across reptiles and later vertebrates.

Option b: The ability to stand on two legs. This is not a universal feature of reptiles or later vertebrates. While some species may stand or perch on two legs, many reptiles (e.g., lizards, snakes) adopt a sprawling or other postures. Therefore, two-legged standing is not a defining shared characteristic.

Option c: The ability to fly. Flight is present in birds (and a few extinct reptiles) but not a general feature of reptiles and later vertebrates. Many reptiles are terrestrial or aquatic and do not possess flight capability, making this option inaccurate as a universal shared trait.

Option d: Reproduction via the amniotic egg. This statement identifies a key evolutionary development that unites reptiles and all later vertebrates: the amniotic egg, which provides protection and nourishment for the developing embryo and allows life away from water. This trait marks a major shared feature across these groups, distinguishing them from amphibians that require water for reproduction.

Synthesis: Among the choices, option d correctly highlights a fundamental shared feature. The other options describe traits that are not universally present across reptiles and subsequent vertebrates, or they describe adaptations limited to certain lineages rather than common to the broader group.

Reptiles and all later vertebrates share what feature?Single choice

Similar Questions

Which of the below is a feature shared between mammals and dinosaurs but not with amphibians or fish?

What is the feature that is common among terrestrial vertebrates but not in more basal vertebrates?

Why was the advent of the amniotic egg so important in the evolution of terrestrial vertebrates?

Which of the following is a key advantage of the amniotic egg that supported the transition of vertebrates from aquatic to terrestrial environments?

Reptiles and all later vertebrates share what feature?

Reptiles and all later vertebrates share what feature?

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler