Slicks car care washes 18 cars each day. on saturday one employee washed 2/3 of the cars. how many cars had the employee washed?

Diffusion and osmosis are forms of passive transport

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?

How does the nervous system affect the excretory system?