Hi help me out with science homework?

A D C C

A=3, B=8, C=2, D=5

Explanation:

- lymphatic system is an organ system in vertebrates that is part of the circulatory system and the immune system, so breaking down the protein is not related

- a uterus is used to reproduce a baby

- bladders store urine

- excreting waste from the body is the job of excretory system

hope the helps!

really dont know just need some points

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.