Answer:
The correct answer would be - functions.
Explanation:
The structure of the skin cells and muscle cells are different and have a different number of cell organelles on their role in the body. Skin cells are a special type of cells that keep on shedding and replaced by new ones therefore they need less energy and have many mitochondria.
In contrast, muscle cells have different structures as they need a high amount of energy to make movements and therefore have lots of mitochondria in the cell.
A community is diverse species living together
An Ecosystem is all the living and nonliving factors that affect an organism
The greenhouse gases effect the environment by leading to climate change and global warming.
Due to green house gases the earth become warmer than normal.This affect weather patterns which led to global warming and climate change.In the last 3 million years the amount of greenhouse gases in our atmosphere is the highest which led to global warming.