In order for materials to enter or exit any type of cell, it has to pass through the cell's selectively permeable barrier. What is the name of the cell's barrier PLEASE HELP I NEED THIS FOR MY NEXT CLASS PLEASEE

The cellular plasma membrane is selectively permeable, which means some materials move through it while others cannot. the movement of materials into and out of the cell is called membrane transport. this activity will you identify the different mechanisms of membrane transport

Explain the difference between mutations in sex cell and those in somatic cells

How are most animals classified in reference to symmetry? a. assymetry b. bilateral symmetry c. monolateral symmetry d. radial symmetry