I believe the last option is the correct one for the illustration of the single celled organism provides and the environment that it is found living in.
A group of cells that performs a similar function is known as tissue.
The answer is T, True. Secondary pollutants are pollutants that we do not directly release, but that are created as a side effect of releasing primary pollutants, such as carbon dioxide, sulfur oxides, and particles such as ash and dust. Secondary pollutants include acid rain, ozone, smog, and CFC's (chlorofluorocarbons).
Answer:
white for the first one and brown for the secound one
Explanation: