1. a doctor is at work taking care of sick patients. she spends a few minutes trying to figure out why a particular patient is sick. she taps the patient's knee to test his reflexes. while she is examining him, the patient coughs on her.

a) describe the function of the skeletomuscular system in this situation.

b) describe the function of the circulatory and respiratory systems in this situation.

c) describe the function of the immune system in this situation.

d) describe the function of the nervous system in this situation.

e) describe one way that any two of the doctor's body systems worked together in this situation.

1. he has a knee

2. he can breathe

3. he might be or not be sick

4. he can feel things

5. she was packing some nice títties you know what im saying? ?

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.