Because Ecosystems support everything that is in it. Even if something has to die, it all works like a puzzle peice. Say if an animal went extinced, then, the animals that were prey of that animals would grow larger, messing up the whole ecosystem.
animals use symbiosis and the life cycle to depend on eachother.
The reason being is that many different species have many common needs, and whatever is common can be provided in one ecosystem, as well as the vast variety of the ecosystem allows different species to still have their needs fulfilled other than what all of the species have in common.
a biological community of interacting organisms and their physical environment.
If the plant live in the pond then it well have water and sunlight so they will have some of thier basic needs
Unicellular organisms meet their basic needs by metabolism (eating, drinking, breathe, and excrete) , growth (how big do they grow), Reproduction, irritability (how do they react to heat and cold, how do they react to danger), adaptation (how do they compete for food and space to survive) and movement (how do they move).
animals use symbiosis and the life cycle to depend on eachother.
The reason being is that many different species have many common needs, and whatever is common can be provided in one ecosystem, as well as the vast variety of the ecosystem allows different species to still have their needs fulfilled other than what all of the species have in common.
living things that can be used to meet human needs
the basic needs that organisms can meet is that thay need to coopera together for thay can hunt or for thay can get in a safe place to avods a prediter
by gathering
Four things that organisms fight for are food, territory, dominance, and mates.
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.
Vacuum cleaners do not meet the minimum requirements for biological life, so they are not living organisms. They do not grow, reproduce or adapt to the environment by changing.
the organism will die
Organisms eat other organisms, defend themselves, reproduce and compete for food and space> Hope this helps =P
they could die
a biological community of interacting organisms and their physical environment.