Answer:
A. Filtering Blood to Remove Unwanted Waste
Explanation:
Excretory system is comprised of Kidneys, liver, lungs and skin.
Sexuality confusions. And sometimes depression
3 is the answer. This harms the lungs. Nicotine can cause lung damage less fast than tobacco.
Answer the age at which one is legally competent to give consent especially to marriage or to sexual intercourse.
Explanation: