Question

Which of the following has a 3 chambered heart?

• A. Salamander
• B. Fish
• C. Crocodile
• D. Dolphin

Answer 1

The correct option is A

Salamander

The correct option is A.

Explanation of correct option:

1. The salamander is an amphibian with a three-chambered heart.
2. It has two atria and one single ventricle.
3. These animals also have separate or different blood vessel circuits for oxygenating and delivering blood.

Explanation of incorrect options:

Option B:

1. Fish have two-chambered hearts.
2. Its heart has one atrium and one ventricle.

Option C:

1. A crocodile is a reptile but exceptionally has a four-chambered heart.
2. Its heart contains two atria and two ventricles.

Option D:

1. Dolphin is a mammal that has a four-chambered heart.
2. Its heart has two atria and two ventricles.

Final answer: Salamander has a three-chambered heart.