Asked by Tyler Short on Apr 24, 2024
Verified
The first group to exhibit an amniotic egg was the ____.
A) cartilaginous fish
B) amphibians
C) reptiles
D) bony fish
E) mammals
Amniotic Egg
An egg that contains an amnion, allowing the embryo to develop independently of water, characterizing reptiles, birds, and mammals.
Cartilaginous Fish
Fish that have skeletons made entirely of cartilage, such as sharks and rays, distinguished from bony fish.
Reptiles
Informal amniote subgroup that includes lizards, snakes, turtles, crocodilians.
- Recognize the evolutionary significance of amniotic eggs and other reproductive adaptations.
- Understand the descent and genetic connections linking fish, amphibians, reptiles, birds, and mammals in evolutionary terms.
Verified Answer
ST
snehal toppo7 days ago
Final Answer :
C
Explanation :
Reptiles were the first group to exhibit an amniotic egg, which allowed them to lay their eggs on land and avoid the need for an aquatic environment for their offspring to develop. Cartilaginous fish and bony fish lay eggs without an amniotic membrane, while amphibians and mammals have evolved other methods of reproduction besides laying amniotic eggs.
Learning Objectives
- Recognize the evolutionary significance of amniotic eggs and other reproductive adaptations.
- Understand the descent and genetic connections linking fish, amphibians, reptiles, birds, and mammals in evolutionary terms.