A Respiration by animals CO2 is being added.
B trees burning same
C tree leaves removed
D oil added
Answer:
They can move about freely.
They can reproduce.
They can respond to internal stimulus.
Answer:
Epithelial cells also line the inside of your throat, intestines, blood vessels, and all your organs. They are a barrier between the inside and outside of your body and are often the first place that is attacked by viruses as they begin their invasion deeper into the body.
Explanation:
Epithelial tissue covers the outside of the body and lines organs, vessels (blood and lymph), and cavities. Epithelial cells form the thin layer of cells known as the endothelium, which is contiguous with the inner tissue lining of organs such as the brain, lungs, skin, and heart.
Answer:
if im not mistaken the answer should be the first one