Even while the body is at rest, which systems work to provide oxygen to the tissues and transport carbon dioxide waste for elimination?

Classify the structures as homologous or analogous, depending on their structure and function.

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.

When the cell concentrates potassium within, against the natural tendency of matter, it is performing a.passive diffusion b.facilitated diffusion c.active transport d.pinocytosis