The two main functions are replication and expression.
Forensic scientists who study possible forgeries and questioned documents are often called forensic or legal linguists.
Forensic linguistics is a branch of linguistics that deals with such illegal kinds of documents so as to solve a certain crime.
Cell wall is the part that protects the cell from things like viruses (but usuallly fails)
It is made of cell tissue made by mitochondria.
Answer: The correct answer for the blank is-
a description of a trait or habitat.
According to the binomial system of classification, living organisms can be named scientifically, using two words. The first word in the scientific name of the organism corresponds to the Genus and the second word/ part is the species to which the organism belongs. The second part that is the species depicts the description of a trait or habitat.
For example- Scientific name for Human beings is Homo sapiens, which shows that they belong to species 'sapiens' that gives description of human beings.
Thus, first option is the right answer.