Select the living thing.

 - echidna
 - flower pot
An echidna is a living thing.
Echidnas grow and respond to the world around them. They need food and water.
Echidnas are mammals. Most mammals give birth to live young, but echidnas lay eggs! Egg-laying mammals are called monotremes.
A flower pot is not a living thing.
Flower pots do not have all of the traits of living things. They do not grow or respond to the world around them. They do not need food or water.