If you were to design an experiment to investigate the effect that temperature has on rate of anaerobic respiration in yeast, what will you need to measure in order to calculate the rate of the reaction?

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

answer; i believe the correct answer is (a)0

1. dermis

2. chemical

3. urine

4. viruses

5. antibodies

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d