For the first half of your question, plants do need to eat. In fact, they are autotrophs, which means they are self feeders.
I believe the answer is Africa
There are some organelles which are found in plant cells but which are not found in the animal cells, these structures will provide a positive identification of a plant cell under a microscope.
The structures which would provide a positive identification of a plant cell under a microscope are CENTRAL VACUOLE, CHLOROPLAST [PLASTIDS] AND CELL WALL. These structures are only present in plant cells.
Khan Academy is great! Also, Alison (it's a website) has some free courses as well.
Answer:
The answer is 0.2
Explanation:
You subtract 8.05 - 7.85 = 0.2
