asked 16.0k views
1 vote
Fishes, amphibians, reptiles, birds, and mammals all have an internal skeleton with a _______. Fill in the blank.

2 Answers

3 votes
All have a vertebrae or spinal cord
3 votes
Hi there!

I believe the answer is a spinal cord - all of these animals are vertebrates.

Hope this helps!
answered
User Vocaloidict
by
7.7k points
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