Name the animal, which exhibits the phenomenon of bioluminescence.
Mention the phylum to which it belongs.
Pleurobrachia exhibits the phenomenon of bioluminescence i.e., phenomenon of emission of light by living organisms. It belongs to the Phylum Ctenophora.
There has been an increase in the number of chambers in heart during evolution of vertebrates. Give the names of the class of vertebrates having two, three or four-chambered heart.
Sort out the animals on the basis of their symmetry (radial or bilateral) coelenterates, ctenophores, annelids, arthropods, and echinoderms.
Give one example each for an animal possessing placoid scales and that with cycloid scales.
There has been an increase in the number of chambers in heart during evolution of vertebrates. Give the names of the class of vertebrates having two, three or four-cham-bered heart.
Match the following and write correct choice in space provided.
| Animal | Characteristics | ||
| a. | Pila | (i) | Jointed appendages |
| b. | Cockroach | (ii) | Perching |
| c. | Asterias | . (iii) | Water vascular system |
| d. | Torpedo | (iv) | Electric organ |
| e. | Parrot | (v) | Presence of shell |
| f. | Dog fish | (vi) | Placoid scales |
Match the following list of animals with their level of organization.
| Division of Labour | Animal | ||
| A. | Organ level | (i) | Pheretima |
| B. | Cellular aggregate level | (ii) | Fasciola |
| C. | Tissue level | (iii) | Spongilla |
| D. | Organ system level | (iv) | Obelia |
Choose the correct match showing division of labour with animal example.
Write one example each of the following in the space provided.
(a) Cold blooded animal_______
(b) Warm blooded animal_______
(c) Animal possessing dry and cornified skin_______
(d) Dioecious animal_______
Could the number of eggs or young ones produced by an oviparous and viviparous mother be equal? Why?
Match the following.
Animals Locomotory Organ
(a) Octopus (i) Limbs
(b) Crocodile (ii) Comb plates
(c) Catla (iii) Tentacles
(d) Ctenoplana (iv) Fins
What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?
Endoparasites are found inside the host body. Mention the special structure, possessed by these and which enables them to survive in those conditions.
Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.
How useful is the study of the nature of body cavity and coelom in the classification of animals?
Endoparasites are found inside the host body. Mention the special structure, possessed by these and which enables them to survive in those conditions.
Mention one example each for animals with chitinous exoskeleton and those covered by a calcareous shell.
All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.
Name
(a) A limbless animal
(b) A cold blooded animal
(c) A warm blooded animal
(d) An animal possessing dry and cornified skin
(e) An animal having canal system and spicules
(f) An animal with cnidoblasts
Mention two similarities between
(a) Aves and mammals
(b) A frog and crocodile
(c) A turtle and Pila
Match the following and write correct choice in space provided
Animal Characteristics
(a) Pila (i) Jointed appendages
(b) Cockroach (ii) Perching
(c) Asterias (iii) Water vascular system
(d) Torpedo (iv) Electric organ
(e) Parrot (v) Presence of shell
(f) Dogfish (vi) Placoidscales
(a)______, (b)______, (c)______, (d)______,
(e)______, (f)______
Sort out the animals on the basis of their symmetry (radial or bilateral) coelenterates, ctenophores, annelids, arthropods, and echinoderms.
Name the animal, which exhibits the phenomenon of bioluminescence. Mention the phylum to which it belongs.
Give an example for each of the following:
a. A viviparous animal
b. A fish possessing a poison sting
c. A fish possessing an electric organ
d. An organ, which regulates buoyancy
e. Animal, which exhibits alternation of generation
f. Oviparous animal with mammary gland.
Give three major differences between chordates and non-chordates and draw a schematic sketch of a chordate showing those features.
Give an example for each of the following
(a) A viviparous animal
(b) A fish possessing a poison sting
(c) A fish possessing an electric organ
(d) An organ, which regulates buoyancy
(e) Animal, which exhibits alternation of generation
(f) Oviparous animal with mammary gland
Provide appropriate technical term in the space provided.
a. Blood-filled cavity in arthropods _________
b. Free-floating form of cnidaria _________
c. Stinging organ of jelly fishes _________
d. Lateral appendages in aquatic annelids _________
Fill up the blank spaces appropriately.
|
Phylum/ Class |
Excretory Organ |
Circulatory Organ |
Respiratory Organ |
| Arthropoda | A | B . | Lungs/Gills/ Tracheal System |
| C | Nephridia | Closed | Skin/Parapodia |
| D | Metanephridia | Open | E |
| Amphibia | F | Closed | Lung |
Match the following:
| a. | Amphibia | (i) | Air bladder |
| b. | Mammals | (ii) | Cartilagenous notochord |
| c. | Chondrichthyes | (hi) | Mammary glands |
| d. | Osteichthyes | (iv) | Pneumatic bones |
| e. | Cyclostomata | (v) | Dual habitat |
| f. | Aves | (vi) | Sucking and circular mouth without jaws |
Comment upon the habitats and external features of animals belonging to class, amphibia and reptilia.
What is the relationship between germinal layers and the formation of body cavity in case of coelomate, acoelomates and pseudocoelomates?
Write one example each of the following in the space provided.
a. Cold blooded animal
b. Warm blooded animal
c. Animal possessing dry and comified skin
d. Dioecious animal
Differentiate between:
a. Open and closed circulatory system .
b. Oviparity and viviparity
c. Direct and indirect development
d. Aceolomate and pseudocoelomate
e. Notochord and nerve cord
f. Polyp and medusa
Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called (a) Acoelomate (b) Pseudocoelomate .
(c) Coelomate (d) Haemocoelomate
Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.
Give an example for the following:
a. Roundworm
b. Fish possessing poison sting
c. A limbless reptile/amphibian .
d. An oviparous mammal
