Astudent asks you for a simple rule to tell apart plants cells and animal cells when viewed under a microscope. describe such a rule.

Plant cells have a cell wall and a cell membrane. Animal cells only have a cell membrane.

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.