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Single circulation ,i.e, blood flows thr...

Single circulation ,i.e, blood flows through the heart only once during one cycle of passage through the body, is exhibited by

A

Labeo , Chameleon , Salamander

B

Hippocampus , Exocoetus , Anabas

C

Hyla, Rana,Draco

D

whale,dolphin,turtle

Text Solution

Verified by Experts

The correct Answer is:
b
The examples and the relation of animal group and heart are as

According to this chart 2 chambered heat is present only in fishes and blood flues only once during are cycle. Group (b) -contain fishes so correct answers in option 'b'.
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Knowledge Check

  • In which of the following groups of organisms, blood flows through the heart only once during one cycle of passage through the body?

    A
    Rabbit, Parrot, Turtle
    B
    Frog, crocodile, Pigeon
    C
    Whale, Labeo, Penguin
    D
    Shark, dog fish, sting ray

  • Consider the following statement about lymph 1. Lymph is another medium of circulation in the human body. 2. Lymph flows in only one direction - from the heart to body tissues. 3. Lymph protects the body by killing the germs drained out of the body tissues with the help of Lymphocytes

    A
    1 and 3 are correct
    B
    1 and 2 are correct
    C
    2 and 3 are correct
    D
    1, 2 and 3 are correct

  • The human circulatory system consist of the heart and blood vessels. By the pumping action of heart pure blood is transported from heart to the body parts and impure blood is collected from different body parts towards the lungs. The blood vessel that carry blood from heart to lungs is an exception to carry impure blood. Similarly, the blood vessel that carry blood from lungs to heart is also an exception to carry pure blood. Pumping action of heart is due to contraction and relaxation of the heart and its one complete cycle is called heart beat. The blood vessels that carry pure blood are ______.

    A
    Arteries
    B
    Veins
    C
    Capillaries
    D
    Pulmonary vein

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    What stops blood from flowing backwards through the heart ?

    During one cycle how many times blood goes to heart of a fish and why ?

    State true of false (a) only one line can pass through a single point. (b) Threre are infinitely many number of lines whisc passes through the two distinct point. ( c ) Euclid belongs to Greece.

    As is rubber and wood are insulatores there are no free electron or currecnt carrless to then .Therefore carrect can and not flow through then On the other hand human body and earth are good conductor A current of 10 mA or more passing thought human body can be fated A current will flow only if the circuit is complete Read the above passage and answer the following position: (i) How can one repair on free line wires? (ii) Why is a current of 10mA or more passage though human body fated? (iii) What is the practical utility of this study?

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