Select the clause that best connects a reason to the opinion: I think we should have a big meal tonight___. A. despite having had a big dinner last time
B. Yet it will take a long time to prepare
C. so we will have potatoes, chicken, and salad
D. Since our cousins will be here for dinner

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.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms