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Water (H2O), carbon, and oxygen. Water is the functional carrier of life processes, carbon is the building block, along with hydrogen from the water and free oxygen for respiration.
There are "anaerobic" bacteria that live in environments on the Earth, but these use the same amino acids as other life. Instead of oxidation, these organisms use fermentation or other processes to obtain energy. There are also bacteria that use sulfates instead of ordinary oxygen.
Lifeforms not based on carbon and oxygen are subjects of speculation, but are unlikely for several reasons, and have never been observed.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoMany living things depend on chemicals to live. However, not all living things depend on the same chemical to live. Plants need carbon dioxide, and animals need oxygen to live.
Wiki User
∙ 13y agoi think carbon dioxide and energy / sunlight
Wiki User
∙ 6y agoThese are proteins, carbohydrates, fats, vitamins, micronutrients, etc.
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What do chemical reactions in living organisms need to start?
all they need is energy
Why do living organisms need living space?
organisms need a living space so that they can reproduce and protect themselves
What is the chemical formula for seawater?
mainly composed of a NaCl solution with most of it just being H2O if you disregard the organisms that live within it
Why you need to study the ecological relationship?
to know how the other organisms live with their environment and what relationships have in them.
Why does an oncologist need to study biology and chemistry?
Because all process within living organisms involve chemical reactions.
What is the key ingredient that all organisms need?
All organisms need oxygen to live.
What do chemical reactions in living organisms need to start?
all they need is energy
How do organisms get the energy they need in order to live?
you need to smell
What do Earth organisms need to live and reproduce?
For organisms to live and reproduce on earth, the three main thing they will always need is Air, Water and Food.
Does the amount of rainfall in an area determine which organisms live there?
yes it does because it need to be in the right climate to live their. (the organisms)
Why do organisms need the chemical buliding blocks of cells?
I dont know who cares
What is the fuel need by organisms to live called?
carbondiyoxide
Why do you need to know what organisms lived long time ago?
why do we need to know what organisms live long time ago
Why do living organisms need living space?
organisms need a living space so that they can reproduce and protect themselves
What do all organisms need in the place where they live?
food they all need food
What 3 things organisms need to survive?
All organisms need food, water, and shelter in order to live, grow, and reproduce.
Do organisms that live on land need water to survive?
yes they do
