Five Kingdom system of classification suggested by RH Whittaker is not based on
presence or absence of a well-defined nucleus
mode of reproduction
Mode of nutrition
Mode of nutrition
A.
presence or absence of a well-defined nucleus
RH Whittaker's classification is nor based on presence or absence of a well - defined nucleus. He gave five kingdom classification and used five criteria for delimiting kingdoms.
These are
both come under body organisation
(i) Complexity of cell structure
(ii) Complexity of body structure
(iii) Mode of nutrition
(iv) Ecological life cycle including mode of reproduction
(v)Phylogenetic relationship.
He divided organisms into five kingdoms as follows:
Kingdom - Monera
Kingdom - Protista
Kingdom - Fungi
Kingdom - Plantae
Kingdom - Animalia
A senentary sea anemone gets attached to the shell lining of hermit crab. The association is
ectoparasitism
symbiosis
commensalism
commensalism
The chitinous exoskeleton of arthropods is formed by the polymerisation of
Keratin sulphate and chondraitin sulphate
D-glucosamine
N-acetyl glucosamine
N-acetyl glucosamine
A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after metamorphosis return to the ocean is:
Eptatretus
Myxine
Neomyxine
Neomyxine
Metagenesis refers to
Presence of different morphic forms
Alternation of generation between asexual and sexual phases of an organism
Occurrence of a drastic change in form during post-embyonic development
Occurrence of a drastic change in form during post-embyonic development
