Answer: ACID
Explanation:on the Ph scale their is acids and bass' the loewer the Ph is hte higher the acid will be
The answer to the question above is a cell.
Answer:
Tributaries
Explanation:
I wound think that they would be branching of so thats what i would say
Answer:
homologous structures
Explanation:
something like bat wings and human hands
they evolved from a common ancestor, but are now different and used differently
