The source of the oxygen released into the air as a product of photosynthesis is C) Water only.
its d because if you get rid of trees then your gettign rid of homes and its increses soil erosion from there being no roots of trees decresed biodiversty form the lack of homes and decresed quality of air because theres no trees to make oxygen
a because its all living things
Radioisotopes tell scientists that the earth is 4.5 billion years old.
Answer: Simple squamous epithelium
Explanation:
The simple squamous epithelium can be define as the layer of flat cells which can be found in contact with the basal lamina. This layer is permeable to allow the molecules to pass through the membrane for diffusion and filteration.
The diffusion of carbon dioxide and oxygen from the membrane of epithelia is also facilitated by the simple squamous epithelium.