14. Dermis
15. Chemical
17. Virus
18. Antibodies
19. Gas exchange
20. Ligament
Hope this helps!
The answer is C. Photosynthesis.
I hope this helps.
Have a nice day. :)
Answer:
C
Explanation:
neon doesn't make up the atmosphere... or does it jk it doesn't
For example salt in water ,salt would dissolve ,you won't be able to see it but if you taste it it would still be there
dissolve /disappear but still be there
