Because they've all evolved adaptively to different environments and different roles in those environments.
Perhaps a better explanation would be that God had a hand in the creation of everything and He likes lots of variety.
Ecology is the study of how living things interact with each other and their environment
Ecology is the study of how living things interact with each other and their environment
The union of two living things that depend on each other is co-dependence.
Ecology is the study of how living things interact with each other and their environment
living things interact with each through food. For example when a fish dies, it becomes a non-living thing and there are other organisms that are living and are eating the dead fish, so this is how living things interact with non-living things
Yes.
biology
Economics is the study of production, distribution and consumption of wealth. The study of living things in relation to each other is known as ecology.
Ecosystem
it depends on which animal
carnivore
Every living creature needs to breath to live.