Which of the following groups of three animals each, is correctly matched with their one characteristic morphological feature?
(1) Liver fluke, sea anemone, sea cucmber-Bilateral symmetry
(2) Centipede, prawn, sea urchin-Jointed appendages
(3) Scorpion, spider, cockroach-Ventral solid central nervous system
(4) Cockroach, locust, Taenia-Metameric segmentation
Which one of the following in birds, indicates their reptilian ancestory?
(1) Two special chambers crop and gizzard in their digestive tract
(2) Eggs with a calcareous shell
(3) Scales on their hind limbs
(4) Four chambered heart
Ascaris is characterized by
(1) presence of true coelom but absence of metamerism
(2) presence of true coelom and metamerism (metamerisation)
(3) absence of true coelom but presence of metamerism
(4) presence of neither true coelom nor metamerism
Which of the following is not a feature of organisms belonging to Kingdom Animalia?
| 1. | They are heterotrophs |
| 2. | The cells lack cell walls |
| 3. | Most of them are multicellular but a few are unicellular |
| 4. | They have two unique tissucs-nervous tissue and muscle tissue |
Approximately what percentage of the existing animal species are invertebrates?
(1) 25
(2) 40
(3) 75
(4) 95
The opening in a sponge meant for the exit for water is called as
| 1. | Ostium |
| 2. | Osculum |
| 3. | Choanocyte |
| 4. | Radula |
Radially symmetrical animals
| 1. | Are all triploblastic |
| 2. | Tend to be sessile and passively floating |
| 3. | Have a definite head and brain |
| 4. | Have an anterior and a posterior end |
The radially symmetrical organisms include
| 1. | Jelly fishes and comb jellies |
| 2. | Star fish and Squid |
| 3. | Flatworms and Roundworms |
| 4. | Ampioxus and tunicates |
The functions of an amoebocyte in a sponge does not include
| 1. | Control of size of body pores |
| 2. | Transport of food to the epidermal cells |
| 3. | Secretion of skeletal material |
| 4. | Reproduction in sponges |
"Parazoa" includes animals that are
| 1. | Lacking a definite symmetry but possess both tissues and organs |
| 2. | Lacking a definite symmetry and possess neither tissues nor organs |
| 3. | Having a definite shape and symmetry |
| 4. | Having tissues organised into organs and organ systems |
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