How does chemical coordination take place in animals?

How does chemical coordination occur in plants?

How the chemical reaction takes place?

How does the spore formation take place?

You are walking in the traffic. Suddenly you heard a loud sound. How does coordination take place in this situation among respected organs ? Draw a block diagram to explain this situation.

How does the exchange of air take place in plants?

What is peridem ? How does peridem formation take place in the dicot stems ?

How does respiration takes place in plants where roots are present in wet places?

Where does fertilization takes place in females ?

a) What is chemical decomposition reaction? b) In what conditions chemical decomposition reactions takes place ? Explain various condition.

How do we know a chemical reaction has taken place?