Adenosine triphosphate(ATP) transfer energy by doing phosphorylation. ATP has three phosphate molecule and it will release one phosphate when releasing energy(exergonic reaction), become ADP + P. ADP could be reused by catching energy(endergonic reaction), makes them catch a phosphate molecule and reform into ATP.
Answer: A-T, G-C
Explanation: A and T/ C and G will always go together in DNA
The nasal cavity is the hollow pipe (your nostril and upwards) that is covered with hairs and muscus membrane. Its main functions are to warm, moisturise, and filter air before it entering the body.
Hope it help :)
Puffin