Comparison of Tropic and Tactic Responses

Similarities between Tropisms and Taxes

Both are adaptive responses that enable the organisms to survive better in their environments.
Both are due to similar external stimuli like; light and water.
Both are directional and are due to unidirectional stimuli.

Differences between Tropisms and Taxes

Tropisms	Taxes
Growth responses	Locomotory responses
Are permanent.	are temporary.
Responses are slow.	Responses are fast.
Brought about by growth hormones.	No influence of growth hormones.