Some bacteria can live with or without oxygen, others can't live with oxygen. Oxygen is used for cellular respiration (breaking down substances, such as sugar, for energy); bacteria that survive without it can ferment organic substances or oxidize inorganic substances.
Some animals, such as moss piglets, can enter a state of suspended animation when conditions are bad and survive without food, water, or even oxygen until conditions are favorable again.
(Fish can get O2 straight out of the water, so they are technically breathing.)
Can't LIVE Without It was created on 1990-02-25.
benthos they survive without sunlight.
whats the word for single celled organisms without nuclei such as esherichia coli which live in the human body
In order to live, photosynthetic organisms cannot survive without sunlight and water. Therefore a photosynthetic organism cannot survive in any place without water, such as a desert, or without light and air, such as the moon.
Archaebacteria
It depends on what organism you are talking about. Some organisms do not require a brain to "live". Organisms without a brain are usually rather simple and have a limited nimber of functions abailable to them.
yes i agree because without a cell we can't live
A community is place where organisms live.
The cell is the functional unit of all known living organisms. Without it, we would not be able to live.
allantois
Monerans I think
By its very definition an ecosystem requires several organisms. An ecosystem is a system formed by the interaction of a community of organisms with their physical environment. It is the very concept of all of the organisms and their interaction with the area in which they live. Without some organisms and an environment to interact with you don't have an ecosystem.