In order for plants and animals to be able to use nitrogen, n2 gas must first be converted to more a chemically available form. review the picture of the nitrogen cycle. one type of organism is responsible for "fixing" nitrogen so other organisms can use the element. what organism is this? a) fungi b) plants c) animals d) bacteria

Can you add the picture or describe it to me? Right now I'd guess that it's probably bacteria because bacteria breaks it down into ammonium and nitrate, which is taken up by the plants by a process of nitrogen fixation.  So, D.

Bacteria

Explanation:

The bacteria fix nitrogen in order to provide it to the plants. The nitrogen that is available in the atmosphere in the form that it cannot be used by the plant itself.

This form of nitrogen is converted into another form which can be used by the plants. The nitrogen fixing bacteria perform this process.

The nitrogen from the plants get transferred to the animals and then released into the environment integrated in the waste material.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.