The cell membrane is what keeps harmful chemicas out of an animal cell. It regulates traffic of all chemicas and proteins in and out of the cell.
hold chemicals that break down food molecules, old cell parts, and harmful bacteria. They are surrounded by a lipid bilayer membrane that keeps their strong digestive chemicals contained inside. Thus, the lysosomes have similar functions to the digestive system of the body. :D
Yes it has been proven that masturbation can prevent a certain type of cancer, if sperm keeps building up some chemicals in the sperm may be harmful if kept in for too long.
zoos
It is helpful because it keeps you company
1.Cotton nowadays is grown using a lot of insecticides (chemicals that help keep bugs/small animals from eating the crop). Although this keeps the bugs/small animals from eating the crops when they leave the field they carry these chemicals with them and so wherever they go the chemicals go too (e.g.parks, bushlands,towns, water sources etc.) So it helps to keep the cotton growing but it creates disadvantages for the area around the fields
1.Cotton nowadays is grown using a lot of insecticides (chemicals that help keep bugs/small animals from eating the crop). Although this keeps the bugs/small animals from eating the crops when they leave the field they carry these chemicals with them and so wherever they go the chemicals go too (e.g.parks, bushlands,towns, water sources etc.) So it helps to keep the cotton growing but it creates disadvantages for the area around the fields
How it works is when you breathe in it keeps the gas and harmful things out and it keeps 80% toxins gas out
it protects it from harmful weather and keeps the ungrown tadpols together.
the epiglottis
it keeps animals protected
Oxygen.
keeps the cat busy