Will give 5 stars and brainliest for correct answer i need on a question which is 1. for your organ system, describe how the system works at the tissue level. let me explain. i choose the respiratory system and i have to, as the question says, describe how the system works at tissue level. the 3 levels are organ system (i choose respiratory) organs (lungs, nose and trachea) tissue so basically the question is 'describe how the respiratory system works at the tissue level (what happens after you do the oxygen process, i guess just explain where the oxygen used goes? )

The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. For instance, digestive system organs cooperate to process food.

The heart pumps blood through the lungs. In the lungs the blood receives oxygen and releases carbon dioxide. ... When the oxygen-rich blood gets to the cells, the cells receive the oxygen and release the carbon dioxide.

They deliver oxygen to the brain :)

Explanation:

hello there the answer is d

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.