GENERAL KNOWLEDGE

GK

GENERAL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is the vertebrate that has two chambered heart?
A
Blue Whale
B
Snake
C
Crocodile
D
Fish
Explanation: 

Detailed explanation-1: -Pisces (Fishes) are vertebrates having a two-chambered heart. They have one auricle and one ventricle.

Detailed explanation-2: -Fish and Insect Hearts Fish hearts have just two chambers, an atrium and a ventricle (Figure 1).

Detailed explanation-3: -Because blood leaves the gills and immediately circulates to the rest of the body, the heart does not require additional chambers beyond the first two. Fish and other animals with 2-chambered hearts, therefore, have simpler circulatory systems than animals with lungs and subsequently, 3-and 4-chambered hearts.

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