Akingdom may be subdivided into only one phylum.
a. true
b. false

Diffusion and osmosis are forms of passive transport

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

Why do the circulatory systems of land vertebrates have separate circuits to the lungs and to the rest of the body?