Fish has _(i) and _(ii)___ circulatory system.

(i)- closed, (ii)- single

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(i)- open, (ii)- double

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(i)- open, (ii)- single

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(i)- closed, (ii)- double

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Solution

The correct option is A (i)- closed, (ii)- single
The vertebrates like the fishes, amphibians, reptiles, aves and mammals have a closed circulatory system.
The circulation of fish is single circulation which is called venous circulation.
In the case of amphibians and reptiles , they exhibit incomplete double circulation and birds and mammals exhibit double circulation.
Open circulation is seen in some of the invertebrates like the arthropods, molluscs.

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(a) Name the red pigment which carries oxygen in the blood.
(b) Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds?
(c) How many chambers are there in the heart of (i) an amphibian, (ii) a mammal, and (ii;) a fish?
(d) Describe the circulatory system in a fish.

Q. Fish have a double circulatory system.

Q. What are the differences between circulatory system of a fish and a bird?

Q. Which animal has a single circulatory system?

Q. Question 6
Which among the following has open circulatory system?

(i) Arthropoda
(ii) Mollusca
(iii) Annelida
(iv) Coelenterata

(a) (i) and (ii)
(b) (iii) and (iv)
(c) (i) and (iii)
(d) (ii) and (iv)

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Fish has ___(i)____ and ___(ii)___ circulatory system.

Fish has _(i) and _(ii)___ circulatory system.