The first one with the boxing crab and anemone is mutualism.
The second one with the dog and flea is parasitism.
there are many ways of explaining the characteristics of mineral
1. mineral are natural
2.mineral are inorganic
3. minerals are solid
4. definite chemical composition
5. crystalline structure
Regulation- the process of the blood sugar becoming regulated by insulin (glucose).
An invertebrate, because an animal with a vertebrate is an animal with a backbone.