Explain it pl

Dear student,

Answer A - The system of binomial nomenclature was introduced by Carolus Linnaeus.

Two conventions-

1. The Genus name should begin with a capital letter and specific epithet should be written in small letters.
2. The name of a species should be underlined when written with hand or italicised in typing.

Example - Homo sapiens

Here Homo is the name of the genus. sapiens is the specific epithet.


Answer b 

Identifying feature of 

Protochordata - marine, possess notochord at certain stage of their lives, exhibit organ level of symmetry.Eg Ascidia

Cyclostomata - Possess gill slits for respiration, lacks law. Eg Petromyzon


Regards