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What form must nitrogen take before plants and animals can use it?
through roots from the soil
Why is nitrogen fixation important to living things?
Plants need nitrogen in order to grow. Nitrogen is abundant in the earth's atmosphere, but plants cannot use it in that particular form (nitrogen gas). Certain bacteria which reside on some plant roots are able to change atmospheric nitrogen into a form that plants can use (ammonia).
It is NOT true that during the water cycle?
Correct Answer is: Living organisms MUST be involved.
What are the characteristics shared by living things?
All living organisms must have or made up of cells.
Why do all organisms face a struggle to survive when natural resources are limited?
Living beings need a certain amount of resources to live. If resources are limited then organisms must struggle against others to get enough resources to keep living.
Why must living organisms rely on nitrogen fixation for their source of nitrogen?
Biology relies on chemistry. The nitrogen must be able to attach to the receptor molecule to be used. Nitrogen fixation renders nitrogen into a less s table form so that it can break bonds and attach to other molecules.
Describe why nitrogen must cycle through an ecosystem?
Nitrogen must be cycled through an ecosystem so that the nitrogen is available for organisms to make proteins.
What form must the nitrogen be in?
compound
Why must nitrogen cycle through an ecosystem?
Because then the organisms can make protein >_<
Why do animals not obtain nitrogen from the air?
Nitrogen gas is fairly inert and so is difficult for organisms to process. Instead, animals must get usable nitrogen compounds from their food.
What are the organisms that must get their energy from food sources?
heterotrophs
What must happen to nitrogen before plants and animal can use it?
Nitrogen must be in the compound form before it is used by plants or animals
What does nitrogen do for organisms?
nitrogen is not only the building blocks of protein, of which muscles and many other of the body's parts are made, but also the basic constituent of DNA, which carries the genetic code for all living things. Nitrogen atoms must also be present in molecules of ADP and ATP, which enable energy transfer during photosynthesis.
What must all living organisms do to be classified as living?
the ability to nourish itself grow and reproduce
What form must nitrogen take before plants and animals can use it?
through roots from the soil
Why is nitrogen fixation important to living things?
Plants need nitrogen in order to grow. Nitrogen is abundant in the earth's atmosphere, but plants cannot use it in that particular form (nitrogen gas). Certain bacteria which reside on some plant roots are able to change atmospheric nitrogen into a form that plants can use (ammonia).
What must happen for plants to use nitrogen in the atmosphere?
Fixation
