Wish it was a bit more specific, but I'll answer as best as I can.
All of the things I list have extremely uncommon exceptions, but most life on earth follows these rules.
All living things require sunlight as an outside energy source to survive.
All living things require oxygen to keep their cells alive and working.
All living things require water to keep hydrated.
All living things need to reproduce in order to keep their species alive.
All living things need food to convert to energy.
More specifically:
If their food isn't made using photosynthesis (conversion of sunlight into energy, e.g. plants) then it must be able to move around and find food to ingest through the mouth. It must also be able to know where it is, most commonly using eyesight. Feeling, hearing, and smelling can also be ways for animals to find their way if they are blind. Also, they must be able to sense danger so they can escape it and encourage the continuation of their species. Last, if you believe in evolution, all living things came from the forming of amino acids which became more complex and developed into different species depending on location and needs of survival.
they all have different organs and there bodies work differently.
The heterogeneous factors in an animal refers to the factors that makes the animals different from each other and one another. The includes the physical traits, the generic and the non-generic factors.
Forest ecosystem.
it is like different races of humans have different languages. only they can understand each other. but if we really tried i bet we could translate it.
Animals communicate to each other in many different ways. They can sing, click, croak, etc... But they can't talk like we do.
invertebrates,marsupials
they are different to each other
by being different!
You mispelled it. It's idiosyncrasy. Uncle Johnny had many idiosyncrasies such as talking too loudly, laughing too loudly, and telling long detailed stories which put everyone to sleep before he finished. Dorie
their amino acid sequence
because they have different colour hair
Each generation is raised differently. We all react and act differently. We all live differently. This is what makes each generation and family so different and unique.
Nothing makes your family different no matter what your sexuality is. The only thing that can be different is the way we treat each other in our family.
only if they are in the same breed of animals and know each other well or if they are not they will kill each other
The heterogeneous factors in an animal refers to the factors that makes the animals different from each other and one another. The includes the physical traits, the generic and the non-generic factors.
The food chain is the cycle that animals interact in how they eat each other. This is also similar to Trophic levels, and how the energy flows and matter cycles between animals and different levels of the food chain.
The way in which they were formed.
Even though animals may be different from each other they all manage to live mostly in peace