well it is not exactly essentioal but salmon need it
<em>Not sure if it's the right thing but here.</em>
Explanation:
Interaction between species and their environment plays a great role in their normal behaviors and existence. Altering the normal habitat of a species has massive effects on its distribution as well as the normal ecological functioning. Human activities have over the years caused a significant change regarding the normal habitats of both animals and plant species. Human activities such as continued agricultural activities and the rapidly growing urban centers have led to the encroachment of forests. The uncontrolled encroachment has led to the development of isolated forest patches.
<u>Hope this helps!</u>
Answer:
oligomers
Explanation:
Sometimes polymers are made from bound groups of monomer subunits (up to a few dozen monomers) called oligomers.
