What type of molecules diffuse through the cell membrane without using a channel protein ?

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy

What would happen if the tubing with the yellow band was placed in a beaker of distilled water?

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?