Which taxonomic term may be substituted for any rank in the classification?

Choanocytes are unique feature of which phylum?

Who is known as the father of Taxonomy?

The algal partner of a lichen is called:

The term 'species' was first proposed by:

How many chambers are present in crocodile's heart?

In phylum Aschelminthes, the alimentary canal is:

An example of phylum Echinodermata is:

Sub-phylum Urochordata includes which of the following groups of animals?

The body cavity of arthropoda is: