The following questions consist of two statements – Assertion (A) and Reason (R).
Assertion (A) : Amphibians have gills as well as lungs for respiration.
Reason (R) : Amphibians were the first animals to come out of water.
Mark the correct choice as:（ ）
Assertion (A) : Amphibians have gills as well as lungs for respiration.
Reason (R) : Amphibians were the first animals to come out of water.
Mark the correct choice as:（ ）
Answer
A
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Solution
Amphibians are organisms which posses both gills and lungs. They can survive in both water and land. Amphibians have two pairs of limbs. Amphibian skin is moist. Ichthyostegalians was the first one who came out of water.
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If one of the angles of a triangle is \( 130°\), then find the angle between the bisectors of the other two angles.
See the figure and find the following:
(i) The coordinate of the point B
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(iii) The point identified by the coordinates? \( \left(-3,-5\right)\)
(iv) point identified by the coordinates \( \left(2,-4\right)\)
(v) The abscissa of the point D
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(i) The coordinate of the point B
(ii) The coordinate of the point c
(iii) The point identified by the coordinates? \( \left(-3,-5\right)\)
(iv) point identified by the coordinates \( \left(2,-4\right)\)
(v) The abscissa of the point D
(vi) The ordinate of the point H
(vii) The coordinates of the point L
(viii) The coordinates of the point M
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