Because chewing begins the breakdown of food before it is swallowed, digestion starts in the mouth and throat. which of the following systems aids most in this early stage of digestion?

humans are now responsible for causing changes in the environment that hurt animals and plant species. we take up more space on earth for our homes and cities. we pollute habitats. human activity often changes or destroys the habitats that plants and animals need to survive.

nb

explanation:

kj

which fault and or fold did you find most difficult to diagram