NEETZoology-Body Fluids and Circulation
NEET Zoology Human Circulatory System MCQ Question
Type: MCQ-conceptual-Medium-Class 11
How many statements are correct?
(i) Your heart is myogenic.
(ii) Medulla oblongata can moderate the cardiac function through ANS.
(iii) Erythroblastosis foetalis can be avoided by administering Rh antigens to the mother immediately after the delivery of the first child.
(iv) Birds and mammals have double circulation of blood.
(v) In amphibians, heart pumps mixed blood to the body.
A
More than three
B
Only three
C
Only two
D
Only one
Correct Answer
Option B
Detailed Explanation
Statements (i), (ii), and (iv) are correct. The heart is myogenic, the medulla oblongata moderates cardiac function, and birds and mammals have double circulation. Statement (iii) is incorrect as Rh antibodies, not antigens, are administered, and statement (v) is correct for amphibians.
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