DNA is the correct answer but next time put answer choices so that people can better answer your questions. Thanks!
I am pretty sure Osmosis sorry if Im wrong
(A)An adaptation is a characteristic that helps an animal survive in its habitat. All animals must be able to obtain food and water, protect themselves from harm, withstand the climate, and reproduce young so the species doesn't become extinct. ... Without their adaptations, the species could not thrive in that environment.
GIRAFFE-That ability – coupled with the tongue's impressive reach and its tough skin – allows giraffes to selectively browse, plucking leaves from among the nasty thorns brandished by many of its preferred food trees, such as acacias.
The difference between respiration and breathing is their functions. Breathing is when your body uses your lungs to inhale and exhale oxygen. Respiration is a chemical reaction where your body uses oxygen to eliminate or break apart Glucose so it could give you energy.
Hopefully this helps :)
