Semi permeable means that some things can go in and out of the cell, but some cannot. Permeable means it allows things to pass through it, so semi permeable means only some things pass through.
When air is heated up the molecules spread out and move faster, so heat rises because it is less dense than the cooler air around it.
Only unicellular orgaimns I might be wrong
In light reactions, a molecule of chlorophyll absorbs one photon of light, causing a chlorophyll electron to transfer to a higher energy level. The energized electrons from the chlorophyll molecules flow down a transportation chain to a compound called nicotinamide adenine dinucleotide phosphate or NADP.
<h3>▪▪▪Cutest Ghost▪▪▪</h3>
Organism are referred to as Pluripotent cells
