Question

Bentham and Hooker’s classification was not based on:

• A. ultrastructure
• B. phytochemistry
• C. embryology
• D. presence or absence of notochord

Answer 1

The correct option is D presence or absence of notochord

Bentham and Hooker gave a natural system of classification of plants based on natural affinities, external features and internal features like ultrastructure, anatomy, embryology and phytochemistry.

In Whittaker's Five kingdom classification, animals are classified on the basis of presence or absence of a solid, flexible rod-like structure called notochord present on the dorsal side of the organism. The animals showing the presence of notochord at some stage in their life were classified as chordates while the animals lacking notochord were classified as non-chordates.