Multiple Choice QuestionsWhich of the following pairs are correctly matched?
Animals Morphological features
(i) Crocodile - 4-chambered heart
(ii) Sea urchin - Parapodia
(iii) Obelia - Thecodont
(iv) Lemur - Thecodont
A, C and D
B, C and D
Only A and D
Only A and D
What is true about Nereis, Scorpion, Cockroach and Silver fish?
They all have jointed paired appendages
They all possess dorsal heart
None of them is aquatic
None of them is aquatic
Areolar connective tissue joins
fat body with muscles
integument with muscles
bones with muscles
bones with muscles
B.
integument with muscles
Loose or aerolar connective tissue is the most generalized connective tissue, which is spread extensively throughout the body - under the skin and epithelia, around and in between the muscles, around nerves and blood vessels between lobes and lobules of compound glands, in the submucosa of respiratory and gastrointestinal tracts.
It functions mainly for binding the parts together but also helps in sliding movement of epithelia, muscles and other parts and also forms the internal histological framework or stroma of many solid organs.
Earthworms are
ureotelic when plenty of water is available
ureotelic when plenty of water is available
uricotelic under conditions of water scarcity
uricotelic under conditions of water scarcity
Select the correct route for the passage of sperms in male frogs :
Testes - Bidder's canal - Kidney - Vasa
efferentia - Urinogenital duct - Cloaca
Testes - Vasa efferentia - Kidney - Seminal
Vesicle - Urinogenital duct - Cloaca
Testes - Vasa efferentia - Bidder's canal -
Ureter - Cloaca
Testes - Vasa efferentia - Bidder's canal -
Ureter - Cloaca
MALT constitutes about ___________ percent of the lymphoid tissue in human body.
50%
20%
70%
70%
Receptor sites for neurotransmitters are present on
Membranes of synaptic vesicles
Pre-synaptic membrane
Tips of axons
Tips of axons
Myelin sheath is produced by
Schwann Cells and Oligodendrocytes
Astrocytes and Schwann Cells
Oligodendrocytes and Osteoclasts
Oligodendrocytes and Osteoclasts
Which one of the following in birds, indicates, their reptilian ancestry?
Scales on their hindlimbs
Four-chambered heart
Two special chambers crop and gizzard in their digestive tract
Eggs with a calcareous shell
Six highly chitinous plate-like teeth are found in ……. of cockroach
Mandible
Gizzard
Mexilla
Rectum
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