Which answer best describes another function of the cell membrane? A) The cell membrane helps to protect only plant cells from larger molecules.

B) The selective barrier allows small molecules to enter and exit in animal and plant cells.

C) Animals cells have a thick cell membrane to keep the cells rigid.

D) The cell membrane keeps material from entering and exiting the cell.​

Essay about how to keep environment clean and safe?

Tia and lin had been best friends since kindergarten. both avid soccer players, the girls decided to try out for the high school team together. unfortunately, there was just one open spot, so only one of the girls would be chosen. they both worked hard, and on tryout day, they did their best. when the team roster came out, lin was excited to see that she had made the team but sad that tia had not. tia was happy for her friend and vowed to work harder so she would make the team the next year. which sentence is the exposition of the passage

What is the main problem that kyle faces at beginning of the story