Differences.
Exoskeleton
1. Hard part that lies outside of the body
2. Develops from ectoderm
3. Composed mainly of hard non-living material called chitin.
Endoskeleton
1. Hard part that lies inside the body
2. Develops from endoderm
3. Composed of living material i.e. bone tissue
Similarities
Both endoskeleton and exoskeleton play a protective role. The endoskeleton protects internal body organs of the organism. The exoskeleton protects the soft body parts and appendages of the organism.
Both endoskeleton and exoskeleton provide structural support and shape to the concerned organism.
The amount of sunlight hitting an area near the equator would be more direct and hotter in temperature, rather than hitting the poles. Since the sun hits the most direct at the equator, the poles will not get as much sunlight because they are much farther away from the equator.
The leaf is coated in a wax cuticle
They are diseases that you can only get from certain places. I forgot what the word was tho