Nce 7 2020-4 0
Describing the cell membrane
Which statements describe the cell membrane? Check all that apply.
The cell membrane is very selective.
The cell membrane lets anything enter the cell.
The cell membrane lets anything leave the cell.
The cell membrane is a protective layer surrounding a cell.
The cell membrane allows waste to leave the cell.

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

10 points! will mark brainiest! in a heat engine if 1,000 j of heat enters the system and the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2,000 j 1: write the equation2: list out your known variables 3: plug the numbers into the equations 4: solve 5: write your solution statement that includes initial energy and final energy added you so much!