Heterotrophs get their food by eating something else. For example, lions are heterotrophs because they eat other animals such as deer. The deer is a heterotroph because it eats grass. Grass is an autotroph because it makes its own food through photosynthesis.
yes, diamond is made of carbon.
Diamond is a macromolecule made of many carbon atoms. Each carbon atom is joined to 4 more carbon atoms each. Having each atom of carbon bonded to four other atoms is why diamond is so hard- there are lots of strong chemical bonds to overcome.
Fungus for cell wall and insects for eoskeleton .