How do animals obtain the nitrogen they use to make proteins and nucleic acids?

A.
by consuming plants or other animals

B.
by absorbing ammonia from bacteria growing in the roots of plants

C.
by breathing the nitrogen present in the atmosphere

D.
by absorbing nitrogen found in the soil

Question

How do animals obtain the nitrogen they use to make proteins and nucleic acids?	
 
 A.
by consuming plants or other animals
 
 B.
by absorbing ammonia from bacteria growing in the roots of plants
 
 C.
by breathing the nitrogen present in the atmosphere
 
 D.
by absorbing nitrogen found in the soil

anonymous · Answer

by consuming plants or other animals