There are 5 main types of family planning methods:
Barrier methods, which prevent pregnancy by keeping the sperm from reaching the egg.
Hormonal methods, which prevent the woman’s ovary from releasing an egg, make it harder for the sperm to reach the egg, and keep the lining of the womb from supporting a pregnancy.
IUDs, which prevent the man’s sperm from fertilizing the woman’s egg.
Natural methods, which help a woman know when she is fertile, so that she can avoid having sex at that time.
Permanent methods. These are operations which make it impossible for a man or a woman to have any children.
Bat's need excellent hearing because without hearing they wouldn't be able to find there way through the DARK cave , cause bats use "eco" to find there way around the cave and without excellent hearing they wouldn't be able to hear there eco and without hearing there eco they bat will not find it's way around
Hope this helps !!! :D
