The Living Organisms and their Surroundings

Unscramble the given words below to get the correct word using the clues given against them.
(a) SATPADAOINT specific features or certain habits which enable a living being to live in its surroundings
(b) RETECOXNI Waste products are removed by this process
(c) LUMISIT All living things respond to these
(d) ROUCDPRENTOI Because of this we find organisms of the same kind