Some carbohydrates, such as , are used as structural material in plants. For most animals, foods that contain these carbohydrates stimulate the digestive system as fiber. A) Glucose
B) Starch
C) Cellulose
D) Glycogen

options c is correct

..

cellulose

Some carbohydrates, such as _Glucose, are used as structural material in plants. For most animals, foods that contain these carbohydrates stimulate the digestive system as fiber.

Explanation:

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.

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.