Answer:
As they produce food by the process of photosynthesis which cannot be done by anyone else. Plants use chlorophyll, CO2 and H2O in photosynthesis( which is a biochemical process). Plants became a cause of life on earth. Hence plants are the ultimate source of food on earth.
The answer would be none of the above as nails, follicles, and glands are known as appendages
The dark brown color of a penny is most likely oxidation, which occurs when the copper in the penny comes in contact with oxygen.<span> </span>
You should have typed the question on Google instead of here
ANSWER: The 6 Science Process Skills
Observing. This is the most basic skill in science. ...
Communicating. It is important to be able to share our experiences. ...
Classifying. After making observations it is important to notice similarities, differences, and group objects according to a purpose. ...
Inferring. ...
Measuring. ...
Predicting.