NEED HELP ASAP Which of the organisms below must perform cellular respiration to survive?

A. Tree

B. Bird

C. Human

D. Bacteria

E. Fish

[Need an explanation to with the answer no links]

Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point