Tissues
Tissues are somewhat more complex units than cells. By definition, a tissue is an organization of a great many similar cells with varying amounts and kinds of nonliving, intercellular substance between them.
I think its the left one (sorry if im wrong)
where a species lives is their habitat.
A scientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas. They are each made of matter. Some are compounds and some are elements. They all contain atoms. [ -best describe all of the materials he is using in the investigation. ]
