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False not all
false
organisms or products of organisms that present a risk to humans
Bacteria live all over and throughout the human body. Bacteria living in our intestines are critical for our digestion, and we need them to live healthily. Others can cause many diseases if they get into or onto our bodies and begin growing.
Because the nitrogen in the air is in a form not usable to animals and plants. The only way animals get nitrogen to build protein and nucleic acid is by eating it. This is usually through plants, which get there nitrogen from the soil. They get it from the soil because bacteria in the soil turn the atmospheric nitrogen into a usable form. In a water ecosystem cyanobacteria (a.k.a. blue-green algae) transform the nitrogen from the atmosphere into usable forms of nitrate
Bacteria Ammonia, nitrates, nitrites
Bacteria Ammonia, nitrates, nitrites
Bacteria =========================== Specifically a particular type of bacteria that live in nodules on the roots of certain plants (eg the Legume family) called "Nitrogen Fixing Bacteria" . Not other bacteria decompose organic material and release nitrogen back into the atmosphere.
Humans use nitrogen in the form of proteins. Bacteria found in soil convert atmospheric nitrogen into nitrates that plants use to produce proteins.
Micro organisms refer to microscopic creatures, such as bacteria. Humans are not among which.
Since the air around you is about 78% nitrogen gas, you might think it would be easy for organisms to retrieve nitrogen easily. However, most organisms cannot use nitrogen gas. Nitrogen gas is called "free" nitrogen because it's not combined with other atoms. Most organisms can use nitrogen only when it has been combined with other elements to form nitrogen-containing compounds. So, is that the answer you were looking for (possibly for homework)?
Humans are more complex organisms.
by Bacteria.
by Bacteria.
False not all
Humans (and most, and if, not all other organisms) need nitrogen is to produce protein. Oxygen is used up in respiration to help produce energy used by the human (and other organisms, but not plants) body.
false