The plasma membrane is considered a barrier to the environment because no molecules may pass through it it controls the passage of molecules into the cell it is located outside of the cell wall only water and small molecules may penetrate the membrane

What is it called when plants lose water though their leaves

The use of dna as evidence in criminal investigations became possible because of the

What is the "great pacific garbage patch"? a large area of marine debris concentrated by rotating ocean currents a large area around the pacific rim where debris collects from natural disasters such as tsunamis an area in the pacific ocean where trash is intentionally dumped due to lack of landfill availability a large trash dump located in hawaii