Animal Kingdom Contact Number: 8527521718Animal Kingdom Contact Number: 8527521718There are certain animals which are acoelomate though they are triploblastic. Mark the animal belonging to this category
1. Fasciola
2. Pheretima
3. Pila
4. Hydra
Which of the following statement is not related to the illustrated animal?
| 1. | It does not have external ear openings |
| 2. | It sheds its scales as skin cast |
| 3. | Tympanum represents the ear. It is to catch the vibrations from air. |
| 4. | It is cobra. Fertilization is internal. |
The most distinctive feature of Echinoderms is the presence of water vascular system which helps in
1. Locomotion
2. Capture and transport of food
3. Respiration
4. All of these
Four chambered heart, homoiothermous, monocondylic skull, internal fertilization are feature associated with
1. Amphibia (salamander)
2. Reptilia (calotes)
3. Aves (psittacula)
4. Mammalia (canis)
Metagenesis is exhibited by
1. Hydra
2. Obelia
3. Aurelia
4. All of these
Which of the following feature can't be associated with phylum ctenophora (sea walnut)?
| 1. | Exclusively marine, radially symmetrical |
| 2. | Shows bioluminescence (the property of a living organism to emit light) |
| 3. | Body bears eight external rows of ciliary comb plates which help in locomotion |
| 4. | Reproduction takes place both by asexual and sexual means |
Mark the incorrect statement
| 1. | Radial symmetry is advantageous to sedentary mode of life |
| 2. | Notochord is mesodermal in origin placed between dorsal hollow nerve cord and alimentary canal in some animals |
| 3. | Pseudocoel (false coelom) derived from blastocoel of the embryo and is bounded by ectoderm and mesoderm |
| 4. | Cephalization is the concentration of sense organs, nervous tissue (brain), and food capturing organs at the anterior end |
Which of the following is not a character of echinoderms?
| 1. | All echinoderms have secondary radial symmetry |
| 2. | Fertilized eggs of echinoderms usually develop into free swimming, bilaterally symmetrical larvae |
| 3. | Water vascular system and hollow tube feet |
| 4. | Present in both marine and fresh water with deuterostomic development and an endoskeleton seen for the first time |
Which of the following is the incorrect matching of the phylum with its characteristics features?
| 1. | Nemathelminthes: Most abundant and numerous among animals, bilaterally symmetrical, triploblastic, unsegmented and pseudocoelomate |
| 2. | Annelida: Triploblastic metamerically segmented and coelomate animals. A closed circulatory system of blood vessels, a heart for pump the blood is found to the first time in annelids in the evolution of animals |
| 3. | Mollusca: Basically oviparous and development is through a trochophore or veliger larva |
| 4. | Arthropoda: Unisexual, fertilization is external, segmented body, each segment bears a pair of jointed appendages covered by a jointed exoskeleton |
Which of the following is incorrect identification of the organisms and its three characteristics features?
Identification and Characteristics
| 1. | Buthus (scorpion): It has six pairs of appendages. Book lungs for respiration. The eggs hatch within the female body. It is viviparous |  |
| 2. | Pila (apple snail): Body covered by a coiled calcareous shell and is unsegmented with distinct head, muscular foot and visceral mass. The mouth contains radula |  |
| 3. | Asterias (star fish): Presence of water vascular system. Development includes free-swimming larva Sexes are separate |  |
| 4. | Octopus (devil fish): Radula present, larva absent Ink glands present, shell is absent |  |
Which of the following is not a character of class Chondrichthyes?
| 1. | The skin is tough, containing minute placoid scales |
| 2. | Air bladder is absent |
| 3. | Fertilization is usually external. They are mostly oviparous and development is direct |
| 4. | They lack the capacity to regulate the body temperature |
A true coelom is between
| 1. | Mesoderm and endoderm |
| 2. | Ectoderm and mesoderm |
| 3. | Body wall and endoderm |
| 4. | Body wall and mesoderm |
Hemichordata was earlier considered as a subphylum under phylum chordata, but now it is placed as a separate phylum under non-chordata. Which of the following character is incorrect with respect to members of this class?
| 1. | Worm-like marine animals with organ-system level of organisation |
| 2. | Bilaterally symmetrical, triploblastic and coelomate animals |
| 3. | Circulatory system is of open type, respiration takes place through gills |
| 4. | Sexes are separate. Fertilisation is internal and development is indirect involving tornaria larva |
If an animal shows radial symmetry and is coelomate having separate sexes, sexual reproduction with indirect development; it should be placed under
1. Coelenterates
2. Ctenophores
3. Annelids
4. Echinoderms
Which of the following can be taken as the unique character of mammals only and is present with all mammals without exception?
| a. | Internal fertilization |
| b. | Four chambered heart |
| c. | Viviparous |
| d. | Direct development |
| e. | Presence of pinna |
| f. | Homoiothermous |
| g. | Mammary glands |
| 1. | (b), (c) and (e) |
| 2. | (a), (b), (d) and (f) |
| 3. | (a), (d), (e) and (g) |
| 4. | Only (g) |
Select the phyla having triploblastic, acoelomate condition
| 1. | Porifera |
| 2. | Coelentrata |
| 3. | Platyhelminthes |
| 4. | Aschelminthes |
When any plane of section passing through the central axis of body, divides the organism into identical halves, it is called
1. Radial symmetry
2. Biradial symmetry
3. Bilateral symmetry
4. Spherical symmetry
Find out the incorrect statement
| 1. | Bioluminescence is well-marked in ctenophores |
| 2. | In fresh water fishes, gills have respiratory as well as excretory functions |
| 3. | Post-anal part is present in all non-chordate |
| 4. | In pristis, skin is tough, containing minute placoid scales |
Examine the figures A, B, C and D. In which one of the four options all the items A, B, C and D are correct?
| (A) |  |
(B) |  |
| (C) |  |
(D) |  |
Options:
| A | B | C | D | |
| 1. | Ophiura | Unio | Antedon | Sepia |
| 2. | Asterias | Dentalium | Echinus | Sepia |
| 3. | Asterias | Pila | Ophiura | Octopus |
| 4. | Asterias | Unio | Ophiura | Sepia |
Which one of the following phylum is correctly matched with its general characteristics?
Phylum General Characteristics
| 1. | Aschelminthes: Bilaterally symmetrical segmented, triploblastic and pseudocoelomate |
| 2. | Porifera: Primitive multicellular animals and have cellular level of organisation. They are generally marine. Digestion is intracellular. |
| 3. | Cnidaria: Exclusively in marine waters, radially symmetrical animals. They have achieved tissue level organisation. |
| 4. | Ctenophora: Exclusively marine, radially symmetrical with combplates. Sexes are separate. |
In which of the following phyla levels of organisation, symmetry and coelom are similar?
| 1. | Porifera and Cnidaria |
| 2. | Platyhelminthes and Aschelminthes |
| 3. | Aschelminthes and Annelida |
| 4. | Annelida and Arthropoda |
Which of the following is a character of echinoderms but not of mollusca?
| 1. | Presence of a rasping tongue-like organ used for feeding, called as radula |
| 2. | They are one of the earliest in evolution to develop an efficient excretory system |
| 3. | An excretory system is absent |
| 4. | Presence of file like rasping organ radula |
Which of the following is not a distinguishing character of members of class: Chondrichthyes?
| 1. | Sexes are separate. They have internal fertilisation and many of them are viviparous |
| 2. | They have to swim constantly to avoid sinking |
| 3. | They have four pairs of gills covered by operculum on each side |
| 4. | The skin is tough, containing minute placoid scales |
Which of the following is common trait amongst reptiles, fishes and amphibians?
1. Ventral nerve cord
2. Oviparous
3. Scales
4. Shelled eggs
Read the following four statements A, B, C and D and select the right option having both statements along with one word scientific term correct for them
A. Free-floating form of cnidaria : Medusa
B. Blood filled cavity in arthropods : Pseudocoel
C. Construction of animal such as earthworm by repeated segments : Metamerism
D. Individual animals having both organs of sexes : Dioecious
| 1. | B & D | 2. | A & B |
| 3. | A & C | 4. | C & B |
Following are the characteristics of an organisms
| 1. | Polyp phase is absent in its life cycle |
| 2. | Radially symmetrical and devoid of cnidoblast cells |
| 3. | The body bears eight external rows of ciliated comp plates, which help in locomotion |
| 4. | Bioluminescence is well marked |
Identify the organisms:
| 1. | Ctenoplana | 2. | Aurelia |
| 3. | Physalia | 4. | Obelia |
Which of the following is the characteristic of chordates but it is not found in other animals?
1. A notochord
2. Jointed appendages
3. An exoskeleton
4. All of these
The metameric segmentation is present in
1. Annelids only
2. Annelida and Arthropoda
3. Platyhelminthes and Annelida
4. Earthworm and Taenia solium
Which one of the following is not a matching pair of an animal and a certain phenomenon it exhibits
| 1. | Obelia : Metagenesis |
| 2. | Pila : Torsion |
| 3. | Octopus : The animal moves rapidly by jet propulsion mechanism |
| 4. | Nereis : Monoecious |
In which of the following the larvae is are bilaterally symmetrical and the adult are radially symmetrical?
1. Cnidaria
2. Echinodermata
3. Plerobrachia
4. Mollusca
A mantle is
| 1. | Present only in bivalves |
| 2. | A structure that acts as a lung or contains gills |
| 3. | A rasping tongue-like organ in Mollusca |
| 4. | Necessary for the molluscs to be motile |
Which of the following is not with a open circulatory system?
1. Tunicates
2. Non-cephalopod molluscs
3. Hemichordates
4. Earthworm
Which of the following are marine and migrate for spawning into rivers, after spawning they stop feeding and die and their characteristics ammocoete larvae after metamorphosis migrate to ocean?
1. Myxine
2. Cyclostomes
3. Petromyzon
4. Agnatha
Which of the following is not a correct set of class and its three examples?
| 1. | Amphibia | : Ichthyophis, Hyla, Rana |
| 2. | Osteichtyes | : Exocoetus, Clarias, Hippocampus |
| 3. | Reptilia | : Chelone, Bungarus, Calotes |
| 4. | Aves | : Psittacula, Aptenodytes, Pteropus |
Which of the following is correct match regarding the phylum and its characteristic cell?
1. Porifera - Choanocytes
2. Ctenophora - Cindoblasts
3. Cnidaria - Colloblasts
4. Aschelminthes - Flame cells
Which of the following is not a matching set of a phylum and its three examples?
| 1. | Porifera - Sycon, Euspongia, Spongilla |
| 2. | Cnidaria - Physalia, Meandrina, Pennatula |
| 3. | Mollusca - Dentalium, Teredo, Chaetopleura |
| 4. | Annelida - Nereis, Pheretima, Wuchereria |
Arthropods can be differentiated from annelids by
1. Metameric segmentation
2. Ventral nerve cord
3. Jointed appendages
4. Presence of nephridia
An animal phylum with organ level of organisation and incomplete alimentary canal is
1. Aschelminthes
2. Platyhelminthes
3. Coelenterata
4. Both (2) & (3)
Mark the correct statements regarding ctenophores
a. Internal fertilization with direct development
b. Sexes are separate and reproduction only by sexual means
c. Eigh ciliated comb plates and bioluminescence
d. Absence of cnidoblasts and tentacles may or may not be present
1. a & c
2. b & c
3. c & d
4. a & b
Mark the characters which are not exclusively found in all flat worms
| 1. | Dorsoventrally flattened body and acoelomate |
| 2. | Both hooks and suckers are present |
| 3. | Bilateral symmetry and triploblastic |
| 4. | Flame cells for osmoregulation and excretion |
Which of the following statements is not applicable to Ascaris?
1. In male, the posterior end of tail is curved
2. It is pseudocoelomate
3. Its mouth develops from blastopore
4. In male, excretory pore is absent
On the basis of which of the following features the sponges can be differentiated from the coelenterates?
1. Diploblastic body wall
2. Canal system
3. Asexual reproduction by budding
4. Acoelomates
All triploblastic animals primarily possess
| 1. | Bilateral symmetry |
| 2. | True coelom |
| 3. | Unisexuality with sexual dimorphism |
| 4. | Regeneration power |
Which of the following features of hemichordates are unlike chordates?
a. Open circulatory system
b. Dorsal heart
c. Dorsal tubular nerve cord
d. Absence of tail
1. a, b and d
2. a, b and c
3. b, c and d
4. a, b, c and d
The pathway of water transport responsible for food gathering, respiratory exchange and removal of wastes is found in phylum
| 1. | Porifera | 2. | Platyhelminthes |
| 3. | Aschelminthes | 4. | Annelida |
All mammals
| 1. | Possess homodont teeth |
| 2. | Possess seven cervical vertebrae |
| 3. | Are viviparous |
| 4. | Nourish young ones with milk |
Study the following statements with respect to an animal
| a. | Body is dorsoventrally compressed |
| b. | Gill slits are ventrally placed and without operculum |
| c. | Air bladder absent, so it has to swim constantly, else it will sink to the bottom |
| d. | It has specific electric organ which is made of modified lateral muscles supplied with nerves |
| e. | Male has claspers attached to pelvic fins |
The animal can be identified as
1. Scoliodon
2. Torpedo
3. Exocoetus
4. Protopterus
Sycon is
1. Multicellular organisms with tissue level organisms
2. Multicellular animal with radial symmetry and false coelom
3. Primitive multicellular organism having cellular level of organization
4. Asymmetrical sponge present in fresh water
Fully ossified endoskeleton with hollow long bones, digestive tract with additional chambers and ability to maintain constant body temperature will be found in
1. Pterophyllum
2. Psittacula
3. Pteropus
4. Testudo
Which of the following is the correct matching with respect to the group, its example and its characteristics?
| Group | Example | Characteristics | |
| 1. | Aves | Columba | Oviparous, development is direct. Dicondylic skull and twelve pairs of cranial nerves |
| 2. | Reptilia | Calotes | Body is covered by epidermal scales or scutes, always contains a post-anal tail |
| 3. | Monotremes | Ornithorhynchus | They are viviparous Dicondylic skull |
| 4. | Chondrichthyes | Torpedo | The skin is tough, containing minute epidermal scales |
