Answer:
A
Explanation:
Acids and bases when mixed neutralize eachother. and 7 is neutral on the PH scale
Atom,molecule,cell,tissue,organism,population,ecosystem,biosphere.
Answer:
weakness of core muscle can lead to chronic back pain
I'd say zoology.
Zoology is the study of animals, generally speaking, and since birds are animals, the study of these fall into the field zoology. The study of birds though, is called ornithology.
Hope it helped,
BioTeacher101
