Multiple Choice QuestionsMetagenesis 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 |
A.
| Genus Name | Two characters | Phylum | |
| pila | (i) (ii) |
Body segmented Mouth with Radula |
Mollusca |
Molluscs are bilaterally symmetrical, triploblastic, coelomate, soft-bodied animals. Thier soft body is covered by a calcareous shell and is unsegmented with a distinct head, muscular foot and visceral hump.
e.g., Pila (apple snail), Sepia (cuttle fish), Pinctada (pearl oyster), etc.
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
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