Answer:
I don't think you'll understand this but...
Explanation:
Think of it as Evolving A Pokemon.
If that doesn't help go to google type in your question (Make sure its simple) And it should Give you a simple answer.
The main structure, which distinguish the eukaryotic cells and the prokaryotic cells are the membrane bound organelles.
The eukaryotic cells are divided by the internal membrane. The internal membranes form the outer covering of the organelles. The organelles such as mitochondria, nucleus, Golgi apparatus, endoplasmic reticulum etc are absent in the eukaryotic cells.
It's D, Without plants for the grasshopper to eat they would begin to decrease in population causing a decrease in mice population from the lack of food supply and so forth for the snake.