Question

What are the two types of biological identification keys

Answer 1

Dear Student

Biological keys are a type of taxonomical aids which are based on contrasting characters.
There are separate taxonomic keys for each taxonomic category like kingdom, division etc. They are analytical in nature and are more useful in identifying unknown organisms. They are of two types, yoked or indented and bracketed.

Bracketed Keys	Indented Keys
The bracketed keys keep the two leads of every couplet for and easier comparison of the alternatives	The intended keys have the two leads of each couplet separated by the couplets following the first lead that making it difficult to compare with the alternatives.
The bracketed keys utilize the space in each page efficiently and so they are cheaper to print.	There is wastage of paper because the keys utilize the right side of the page and so they are expensive to print
These are known as parallel keys	These are known as yoked keys
They will group taxa	They wont group taxa
They do not give a visual presentation of the group	They give visual presentation of the group
Leads are far apart	Leads are next to each other

Regards