EASY
7th CBSE
IMPORTANT
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The pulmonary artery carries blood.

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Important Questions on Transportation and Excretion

EASY
7th CBSE
IMPORTANT
The rhythmic contraction and relaxation of heart is called the _____.
EASY
7th CBSE
IMPORTANT
The red blood cells are produced in- (Spinal cord/ Canaliculi/ Bone marrow/ Brain stem)
MEDIUM
7th CBSE
IMPORTANT
Name the instrument used for detecting heartbeat.
MEDIUM
7th CBSE
IMPORTANT
The muscular wall which separates chambers of heart is
EASY
7th CBSE
IMPORTANT

Name the following.

The heart is enclosed by a double-walled sac. (Pericardium/ Endocardium)