Multiple Choice QuestionsWhich one of the following phyla is correctly matched with its two general characteristics?
Arthropoda - Body divided into head, thorax and abdomen and respiration by tracheae.
Chordata - Notochord at some stage and separate anal and urinary openings to the outside
Echinodermata - Pentamerous radial symmetry and mostly internal fertilisation
Echinodermata - Pentamerous radial symmetry and mostly internal fertilisation
What is common between parrot, platypus and kangaroo?
Homeothermy
Toothless jaws
Functional post-anal tail
Functional post-anal tail
Which one of the following is a matching set of a phylum and its three examples?
Cnidaria — Bonellia, Physalia, Aurelia
Platyhelminthes — Planaria, Schistosoma, Enterobius
Mollusca — Loligo, Teredo, Octopus
Mollusca — Loligo, Teredo, Octopus
Metameric segmentation is the characteristic of
Platyhelminthes and Arthropoda
Echinodermata and Annelida
Annelida and Arthropoda
Annelida and Arthropoda
C.
Annelida and Arthropoda
Metameric segmentation is the characteristic of Annelida (e.g., earthworm) and Arthropoda (e.g. Cockroach).
In earthworm body consists of 100-120 ring-like segments or somites called metameres. It shows true segmentation i.e., external segmentation corresponds with internal segmentation.
Cockroach also shows the metameric segmentation. Its anterior few segments are specialized to form head. Such metamerism is called heteronomous metamerism.
Metameric segmentation is absent in platyhelminthes, Echinodermata, Mollusca etc.
Biradial symmetry and lack of cnidoblasts are the characteristics of
Starfish and sea anemone
Ctenoplana and Beroe
Aurelia and Paramecium
Aurelia and Paramecium
In which one of the following sets of animals do all the four give birth to young ones?
Lion, bat, whale, ostrich
Platypus, penguin, bat, hippopotamus
Shrew, bat, cat, kiwi
Shrew, bat, cat, kiwi
Two commons characters found in centipede, cockroach and crab are
compound eyes and anal cerci
jointed legs and chitinous exoskeleton
green gland and tracheae
green gland and tracheae
Which of the following represents order of 'Horse'?
Equidae
Perissodactyla
Caballus
Caballus
Frog's heart when taken out of the body continues to beat for some time
Select the best option from the following statements
(a) Frog is a poikilotherm
(b) Frog does not have any coronary circulation
(c) Heart is 'myogenic' in nature
(d) Heart is autoexcitable
Only (c)
Only (d)
(a) & (b)
(a) & (b)
In case of poriferans the spongocoel is lined with flagellated cells called :
Ostia
Oscula
Choanocytes
Choanocytes
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