4: a. Explain the term female sterilization ​

Explanation:

Female sterilisation can be seen as an operation to permanently prevent pregnancy. sterilization for women is a procedure that blocks the fallopian tubes so that eggs do not reach the uterus. Many people call it getting your tubes tied. Doctors may call it tubal ligation or tubal occlusion. This is a permanent form of birth control.The fallopian tubes are blocked or sealed to prevent the eggs reaching the sperm and becoming fertilised.

not only is it colder, it also becomes darker, less salty, and more dense.

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.