61.

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

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

Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristic of phylum

• Coelenterate

• Porifera

• Mollusca

• Mollusca

Select the taxon mentioned that represents both marine and freshwater species

• Echinoderms

• Ctenophora

• Cephalochordata

• Cephalochordata

Which one of the following living organisms completely lacks a cell wall?

• Cyanobacteria

• Sea-fan (Gorgonia)

• Saccharomyces

• Saccharomyces

Planaria possess high capacity of 

• metamorphosis

• regeneration

• alternation of generation

• alternation of generation

A marine cartilaginous fish that can produce electric current is 

• Pristis

• Torpedo

• Trygon 

• Trygon 

In which one of the following, the genus name, its two characters and its phylum are not correctly matched, whereas the remaining three are correct?

• Genus Name		Two characters	Phylum
  pila	(i) (ii)	Body segmented Mouth with Radula	Mollusca

• Genus Name		Two characters	Phylum
  Asterias	(i) (ii)	Spiny skinned Water vascular system	Echinodermatac

• Genus Name		Two characters	Phylum
  Sycon	(i) (ii)	Pore bearing Canal system	Porifera

• Genus Name		Two characters	Phylum
  Sycon	(i) (ii)	Pore bearing Canal system	Porifera

Which one of the following pairs is wrongly matched?

• Ginkgo – Archegonia

• Salvinia – Prothallus

• Viroids – RNA

• Viroids – RNA

Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?

• Pteropus and Ornithorhyncus - Viviparity

• Garden lizard and Crocodile - Three chambered heart

• Ascaris and Ancylostoma - Metameric segmentation

• Ascaris and Ancylostoma - Metameric segmentation