The correct answer is endothelium.
The endothelium is a thin layer of single-layered, squamous cells that can be found in the lumen of blood vessels, on the interior surfaces of the heart chambers, in the glomerulus of the kidney...The main function of endothelium is barrier function when it acts as a semi-selective barrier between the lumen of the vessels and surrounding tissue, and thus, controls the passage of materials. The endothelium is also included in functions such as fluid filtration in the kidneys, the control of blood pressure (vasodilatation and vasoconstriction), inflammation.
Total number of oxygen atoms in carbon dioxide and water
Answer:
Parasitism
Explanation:
One organism benefits, and one is harmed.
The incorrect statement about the nitrogen cycle is option A: nitrate and nitrite reductases in denitrifying bacteria convert ammonia to nitrogen gas.
The biological nitrogen fixation (BNF) is the process by which atmospheric nitrogen is changed into ammonia, and the nitrogen-fixing bacteria are known as diazotrophs. Fixation, ammonification, nitrification, and denitrification are significant nitrogen cycle processes. Ammonia is converted to nitrites and then to nitrates which are absorbed by plants with the help of their roots. Therefore, option A is incorrect.
Through bacteria that fix nitrogen from the atmosphere, nitrogen enters the living world. Soil bacteria convert this nitrogen and nitrogenous animal waste back into gaseous nitrogen, supplying the organic nitrogen required by terrestrial food webs.
To know more about nitrogen cycle, refer to the following link:
brainly.com/question/11662775
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