Phylum chordata fundamental character and classification

Animals belonging to Phylum Chordata are fundamentally characterised by the presence of structures noted as A, B C and D. Identify them and select the correct option.

Chordata includes

Three fundamental characters of all chordates are

Which of the following is not a fundamental character of a chordate?

The fundamental and mathematical basis are an aid to the classification of organisms called

All the fundamental chordate characters are retained thought life in the members of

The system of plant classification proposed by Carolus Linnaeus was artificial because : (a) he was not a naturalist (b) his classification was based on similarities and differences in floral and other morphological characters only (c) his classification was based on evolutionary relationships (d) he took into account the physiological relationships along with morphological observations

Which is an exlucsive chordata character

In angiosperm, characters of flowers are used in classification because :

Assertion. Conservative characters are more useful in classification. Reason. These characters do not change during evolution. Therefore, their similarities show relationships among organisms.