There are two types of succession that lead to the increasment of the ecosystem:
1. Primary succession is the change in the structure of an ecosystem represented with the increase of the ecological community on an area that has not been previously occupied by an ecological community such as area after the lava flow or glacial lake. The first organisms of primary succession are pioneer plants usually, lichens and mosses.
2. Secondary succession includes the step of removal of pre-existing community and after that, colonization of the new one.
The atom is the basic unit of matter.
I would ask the patient if he/she thinks about harming his/her self and how severe the depression is ie mild moderate or severe and how does it manifest itself to the person ie loss of initiative difficulty making decisions being negative about oneself, how long they have been depressed for, and also who are the significant people in their lives ie do they live with loved ones, have children, grandchildren etc ie important people to live for.
Introns stands for intervening sequences within a gene.
Explanation:
Introns are the nucleotide sequences within a gene which are intervening but noncoding regions on an RNA transcript which is spliced before the RNA translation to protein
Introns do not code amino acids for protein synthesis. They break the gene sequence in the DNA strand.
The introns form a large chunk and interfere with the protein coding of exons, hence are removed by splicesomes through splicing at the splice junctions.
Improper splicing of introns lead to faulty protein formation
