Multiple Choice QuestionsReceptacle of antheridiophore and archegoniophore of Marchantia respectively are
8 lobed, 9 rays
6 lobed, 4 rays
9 lobed, 5 rays
2 lobed, 6 rays
Haemocyanin pigment is found in which of the following animal group?
Annelida
Insects
Lower invertebrates
Platyheliminthes
The eggs of the amphibians are
Mesolecithal
Telolecithal
Centrolecithal
Homolecithal
B.
Telolecithal
Based on the quantity of yolk in the cytoplasm of the eggs, it is classified into:-
(i) Homolecithal (uniformaly distributed yolk
(ii) Telolecitha (yolk is concentrated in the vegetal half) e.g., In amphibians.
(iii) Mesolecithal (Yolk is very large, occupies most of the space).
(iv) Centrolecithal (Yolk localised at the centre).
Aristotle's lentern is
pedicellariae in Pycnopodia
arval form in Antedon
pressure equalisation plate in Asterias
masticatory organ in the digestive tract of sea urchin
Ornithorhynchus is a connecting link between
fishes and amphibians
Annelida and Arthropoda
Annelida and Mollusca
reptiles and mammals
A fish introduced into a water body to control mosquito population is
Gambusia
Labeo
Notopterus
Fistularia
Identify the incorrect match
Mulberry silk - Bombyx mori
Tasar silk - Antheraea pernyi
Muga silk - Antheraea assama
Eri silk - Attacus ricini
All chordates at one or other stage possess
two pairs of pentadactyl limbs
pharyngeal gill slits
movable jaw
vertebral column
Mammals have
biconvex RBCs to increase the surface area
biconcave RBCs to increase the surface area
spherical RBCs to increase the surface area
no RBCs
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