Answer:
A vertebrate is anything with a backbone. Mammals, Amphibians, Reptiles, Birds, and some fish. These organisms with a backbone would be categorized as Phylum Chordata. (Chordates, meaning chord, or spinal chord).
Explanation:
a
the answer is most likely A
Structural adaptation
Different acids make different salts.
a hydrochloric acid
b sulphuric acid
c nitric acid
