Answer:
I believe its c because D makes no sense, swimming takes the most amount of energy, it's not B because household chores are not health enhancing, they are beneath moderate, and it's not A because jogging is completed at a little bit higher level than moderate, but swimming is above High. I used the process of elimination, and concluded that C made the most sense, hope I helped you.
Explanation:
Answer:
D) is the answer because it only allows particular molecules to get in and out
Answer:
I think The answer is sponge.
Explanation:
Condoms are also known as "barrier" methods of birth control; they physically block or otherwise prevent sperm from entering the uterus and reaching the egg for fertilization. The diaphragm, cervical cap, and sponge are used along with spermicide (a chemical substance that destroys sperm) to prevent pregnancy.
