MCQ
How many chambers are there in fish heart?
- ATwo
- BThree
- CFour
- DOne
Explanation:
All vertebrates have a muscular chambered heart.
Fishes have a two chambered heart with a single atrium and a ventricle.
In fishes, the heart pumps out deoxygenated blood which is oxygenated by the gills and supplied to the body parts from where deoxygenated blood is returned to the heart (single circulation).
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| Column $- I$ | Column $- II$ |
| $(a)$ Floating Ribs | $(i)$ Located between second and seventh ribs |
| $(b)$ Acromion | $(ii)$ Head of the Humerus |
| $(c)$ Scapula | $(iii)$ Clavicle |
| $(d)$ Glenold cavity | $(iv)$ Do not connect with the sternum |
$(a)\quad(b) \quad(c) \quad(d)$