1.

Define the following:1. Dialysis2. Reflex action3. Homeostasis4. Tropism

Answer»

1. The process of separating the nitrogenous waste from the blood with the help of a manmade machine is called dialysis.

2. An immediate and involuntary response given to a stimulus from the environment is called a reflex action.

3. Proper co-ordination between various systems of an organism helps to maintain a state of equilibrium called homeostasis.

4. Movement or growth of any part of the plant in response to an external stimulus is called tropism.



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