Under which conditions do most types of cells function at optimal levels? A. over a wide range of temperatures and pHs B. at any temperature and pH C. within a narrow range of temperature and pH in D. rapidly changing temperatures and pHs​

answer; ///digestive system,,alimentary system,gastrointestinal system and the gi

the answer would be d

i think it is dna, i'm not totally sure but i think it might be.

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above