Must all species reproduce in order for the species to survive? *

Standing in the sunlight and feeling the heat on your face (uv radiation is entering the skin, converting to infrared radiation, and is absorbed by your tissues)orstanding near a fire and feeling the heat on your skin (infrared radiation transfer)

Idont know. if you want an answer you need to give us some context dude.

Adialysis unit requires 78.5 l of water.the estimated digit is 5. 

Answerchemical energy;