Answer:
The nitrogen cycle could not exist without nitrogen fixing microbes. These microorganisms are capable of transforming the atmospheric nitrogen in the form of fixed nitrogen. This form of nitrogen can be used by the plants. More than 90 per cent of the nitrogen are converted into usable form by the help of nitrogen fixing bacteria.There are basically two steps in nitrogen cycle. Nitrification and denitrification. The conversion of ammonia to nitrate is called nitrification and the conversion of nitrates into nitrogen is called Denitrification. The Rhizobium, Clostridium, some blue-green algae, Pseudomonas are some species of bacteria involved in Nitrogen Cycle.
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Answer: Stem cells are like baby cells that haven’t decided what they want to be yet, so they could become anything. The other cells in our body already have either DNA to be a skin cell, muscle cell, kidney cell, red blood cell (to carry oxygen which binds to hemoglobin in the RBC), or a WBC (which helps fight off infections such as bacteria and viruses). I hope that this helps. Misty RN, BSN
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turtles, fishes, birds, whales, cats, dogs, really any animal can be affected
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(any animal in the ocean) mark as brainliest plz
Answer:
Both natural selection and genetic drift are mechanisms for evolution (they both change allele frequencies over time). The key distinction is that in genetic drift allele frequencies change by chance, whereas in natural selection allele frequencies change by differential reproductive success.
Yes. The universe is EVERYTHING space is made of. Earth is just one planet
