HARD
7th CBSE
IMPORTANT
Earn 100

The heart gives away impure blood through an artery. Give reason.

Important Questions on Transportation and Excretion

HARD
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 11 - Transportation and Excretion>ASSESSMENT ZONE>Q F
Give reasons why arteries have thick elastic walls.
HARD
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 11 - Transportation and Excretion>ASSESSMENT ZONE>Q F
We feel cool in summers while sweating. Give reason.
HARD
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 11 - Transportation and Excretion>ASSESSMENT ZONE>Q F
If plants do not get enough water, they droop and wilt. Give reason.
HARD
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 11 - Transportation and Excretion>ASSESSMENT ZONE>Q G
What are the functions of white blood cells and platelets present in the blood?
HARD
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 11 - Transportation and Excretion>ASSESSMENT ZONE>Q G
What is the difference between a heartbeat and a pulse?
HARD
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 11 - Transportation and Excretion>ASSESSMENT ZONE>Q G
In what way does transpiration help in ascent of sap?
HARD
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 11 - Transportation and Excretion>ASSESSMENT ZONE>Q G
Why is sweating important for human body?
HARD
7th CBSE
IMPORTANT
Expanded Universal Science 7>Chapter 11 - Transportation and Excretion>ASSESSMENT ZONE>Q G
How do aquatic organisms and single-cell organisms excrete their waste?