The exchange of gases between animals and the environment is called.

respiration

2points what is the term for a female reproductive cell? a. egg b. chromatid c. allele d. fertilization

The breakdown of food is accomplished by enzymes. a. physical b. chemical c. mechanical d. none of the above

As molecules are formed from metabolism, entropy __ and the universe becomes less disordered. a. is decreased b. is increased c. moves closer to equilibrium d. is unchanged