HARD
7th CBSE
IMPORTANT
Earn 100

You have studied in the chapter that due to certain abnormal conditions, the kidneys can fail. Is it possible for a person to survive with one kidney? How can such people be cured?

Important Questions on Transportation and Excretion

EASY
7th CBSE
IMPORTANT

Choose the right answer and fill in the blank:

The normal heartbeat of human beings is about _____ (72/92) beats per minute.

MEDIUM
7th CBSE
IMPORTANT
The _____ are the smallest blood cells present inside our body. (Red blood cells/Platelets)
EASY
7th CBSE
IMPORTANT
The pulmonary artery carries _____ blood.
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