Answer:
Answer is C. Bacteria
Certain types of bacteria have a relationship with certain plants where they help convert nitrogen into a usable form.
Explanation:
Nitrogen is abundant in the atmosphere, but plants cannot use it because of the absence of a necessary enzyme, nitrogenase, which converts nitrogen into a usable form. So they form a symbiotic relationship (mutually-beneficial arrangement) with nitrogen fixing soil bacteria (rhizobia) which perform biological nitrogen fixation. Biological nitrogen fixation is a process in which the symbiotic nitrogen-fixing bacteria coverts atmospheric nitrogen into ammonia and organic derivatives that plants can use to synthesize proteins. This bacteria form nodules on the roots of plants like legumes in which nitrogen fixation takes place.
Both plants and bacteria benefit from this symbiotic relationship, as the plant obtains ammonia to synthesize proteins from nitrogen in the atmosphere while bacteria obtain carbon compounds from the plant produced through photosynthesis and a secure environment to grow. As the plant roots leave behind some of the usable form of nitrogen in the soil, this process also increase soil fertility.
The endurance-athletes experience onset of blood latic acid at 85-90% of vo2max
The answer would be: White blood cell (WBC) count of 20,000/mm3
Peritoneal dialysis is an invasive treatment that involves an injection of fluid to the peritoneal space. It has a high risk of infection, which could cause peritonitis. Increases of white blood cells is a sign of infection. Peritoneal dialysis needs to be stopped if the infection occurs.
Answer: A stand of aspen trees dies and decays, leaving a clearing in the forest.
Explanation:
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