It starts in the mouth. You start to chew in which the glands that produce saliva make it easier to send down the esophagus
Your answer would A insects because insects are the only invertebrates that can maintain flight. FOr example Butterflies and Flies Can maintain flight
Hope this has helped :)<span />
I'm pretty sure it's Cells
i think A would be right if they are taking ab the scientific method
Answer:
It will most likely decrease.
Explanation:
