How many chambers are there in the heart of amphibians?
Show answer & explanation
Correct answer: B
Explanation
Correct Answer:
Option 2 (3)
Explanation:
Amphibians, such as frogs, have a three-chambered heart. It consists of two atria and one ventricle. The left atrium receives oxygenated blood from the lungs/skin, while the right atrium receives deoxygenated blood from the rest of the body, which eventually mix in a single ventricle.
Additional Facts:
Fishes: Their hearts are two-chambered (one atrium and one ventricle).
Reptiles: Most reptiles have three-chambered hearts, but crocodiles are an exception, with a four-chambered heart.
Birds and Mammals: Their hearts are four-chambered, keeping oxygenated and deoxygenated blood completely separate.
Possible questions for the upcoming exam:
How many chambers are there in the human heart? (Answer: 4)
Which animal's heart is called a 'venous heart'? (Answer: Fish - because only impure blood flows through it)
How many chambers are there in the heart of a crocodile? (Answer: 4)