What is the difference between critically endangered endangered vulnerable and threatened species?

These are the different categories defined by the IUCN that are given below in detail.

Explanation:

The right question goes like this, "what is the difference between critically endangered, endangered, vulnerable, and threatened species?"

The answer to this question is,

International Union for Conservation of Nature (IUCN) classifies species into nine groups through unique criteria such a rate of decline, size and degree of population, geographical distribution, and so forth. The following are some of those categories.

According to IUCN "Threatened" embraces the divisions of Critically Endangered, Endangered, and Vulnerable.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'