The simple answer would be resources. There is always a limited amount of resources, and when they are more scarce, competition is more fierce. Few animals (lions and hyenas are one example) compete out of a perceived hatred for each other (people may be another), so competition is usually about survival. Injury often equals death in the wild, so rarely will animals compete physically for food/water/territory/mating rights unless their livlihood depends on it.
Competition among organisms is part of life and nature, after all there is only so much food, space, and water in the environment. The organism with the best adaptions is the one most likely to survive.
organisms compete is one way to ensure their future like organisms compete for food to stay out of hunger or male organism fight for a mate to pass on their DNA for their next generation
Competition occurs because there are limited supplies of resources that are essential for life.
It's occurs because their resources are scares as in low or out
food
shelter
a mate
To survive and not die
Organisms have to compete for a lot of things in order to meet their needs. Some of the things that they have to compete for are habitats, food, and water.
I think the simple answer is that we effectively compete with all other species on the planet (expect perhaps some deep ocean life forms).
Organisms that make their own food from sunlight and/or chemical energy from deep sea vents are the base of every food chain - these organisms are called autotrophs.Source: Enchanted Learningamoeba
Animals compete for mates by doing many things to impress the possible mate. For example, a bird may show off its colourful wings and some species of bird do a sort of dance to try and win over there mate. Other animals, may compete by fighting till death to try and amaze the potential companion .
Different snakes have different dietary requirements, so ratsnakes would not compete with animals which do not eat rats. Some snakes eat insects, and some eat other snakes. Some snakes eat eggs. Depending on their diet, snakes compete with certain birds, mammals, amphibians, and other reptiles, and sea snakes compete with fish and other sea creatures which eat the same prey as they do.
Food
Organisms have to compete for a lot of things in order to meet their needs. Some of the things that they have to compete for are habitats, food, and water.
Some organisms win and some organisms lose.
Organisms start to compete for resources.
Competition arises when organisms need the same resources and fight for it. Gorillas, shrimp and plants all compete for reproductive selection, sunlight and food.
Eubacteria are unicellular microorganisms. Some of these organisms are capable of making their own food, while others rely on the environment for their food source.
They would probably compete for some grass.
that way no one organism dominates an environment and a healthy food tree can develop
No just plants and some micro organisms. They make their own food by photosynthesis. They're called autotrophs. In some extreme environment conditions, some micro-organisms make their own food by chimiosynthesis. These guys are called chimiotrophs. All the other animals need to eat other animals or plants to obtain energy to live. They're called heterotrophs.
Those organisms have a wider food variety; for example a bird that eats only flies will not survive as well as a bird that eats flies and beetles, if the flies run out.
All organisms have some affect on their environment. For example an organism may deplete their food source but then the population will die out or move on and the environment will recover. Humans are the only animals that control / manipulate the environment to suit themselves.
Some organisms are better at adaptation to their environment because of their size, their diet, or any number of other reasons.