Trace metals, like iron and magnesium, are considered _Building blocks of molecule__________________, while organic compounds, like vitamins, are considered________Complex Molecule___________
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:
Answer:
joining small molecules together to form long chains
Explanation:
plastics are actually polymer which is made by joining small units know as monomer. for e.g butene ethanol
