Organisms that feed upon decaying matter are called:
Heterotrophs
Saprophytes
Myxophytes
Autotrophs
Who introduced binomial nomenclature?
John Ray
A. P. de Candolle
A. L. de Jussien
Carolus Linnaeus
Choanocytes are unique feature of which phylum?
Protozoa
Porifera
Mollusca
Echinodermata
What is the scientific name of the National bird of India?
Psittacula eupatria
Passer domesticus
Pavo cristatus
Corvus splendens
The algal partner of a lichen is called:
Mycobiont
Phycobiont
Both 1 and 2
None of the above
Which are the excretory organs in members of phylum Platyhelminthes?
Nephridia
Malpighian tubules
Flame cells (solenocytes)
Green glands
A group of freely inter-breeding organisms constitutes a:
Species
Genus
Family
Class
Elasmobranchs do not have:
Placoid scales
Gill-slits
Notochord
Operculum
The term 'species' was first proposed by:
Aristotle
Linnaeus
John ray
Leeuwen hoek
The body cavity of arthropoda is:
Pseudocoel
Coelom
Haemocoel
Acoelom