The final enzymatic breakdown in the digestive processes of most proteins and carbohydrates are accomplished by:
a. enzymes secreted in the stomach and pancreas
b. enzymes secreted in the pancreas
c. enzymes secreted in the brushborder
d. enzymes secreted in the mouth and small intestine
e. enzymes secreted in the pancreas and large intestine

b. enzymes secreted in the pancreas

Explanation:

The pancreas is a gland which is situated in the abdomen. It functions as endocrine as well as an exocrine gland.

The endocrine part of the pancreas is the islets of Langerhans which secretes hormones insulin and glucagon directly into the bloodstream.

It releases pancreatic juice that contains digestive enzymes into the duodenum of the small intestine.

The final digestion of carbohydrates, protein and fats occur in the duodenum with the pancreatic enzymes.

The enzymes include:

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.

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.