1)why do ventricles have thicker wall than auricles?
2)what makes watre to rise in tall trees several meters high?
3)why do veins have valves but arteries don't have.
4)why opening of auricles and ventricles are guarded by valves?
5)why leucocytes are called soldiers of our body?
6)why does rate of heartbeat increases after running?
1. As ventricles have to pump blood to the whole body with high pressure, they have thicker wall than auricles which receives blood from various parts of the body at low pressure
5. As leukocyte fights against infection in our body and protects us from various harmful foreign agents, so they are considered as soldiers of our body.
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5. As leukocyte fights against infection in our body and protects us from various harmful foreign agents, so they are considered as soldiers of our body.
"Due to paucity of time it would not be possible for us to solve all your queries. We are providing solution to one of your queries. Try solving the rest of the questions yourself and if you face any difficulty then do get back to us."