Related Questions
What is the correct answer?
4
Which of the following animal's body is covered by calcareous shell and unsegmented with a distinct head, muscular foot, and visceral hump?
What is the correct answer?
4
Which of the following statements is incorrect ?
A. Prawn has two pairs of antennae.
B. Nematocysts are characteristic feature of the phylum cnidaria.
C. Millipedes have two pairs of appendages in each segment of the body.
D. Animals that belong to phylum porifera are exclusively marine.
What is the correct answer?
4
Which of the following statements (i - v) are correct ?
(i) The pelvic fins of female sharks bear claspers.
(ii) In Obelia, polyps produce medusae sexually and medusae form the polyps asexually.
(iii) Flame cells in platyhelminthes help in osmoregulation and excretion.
(iv) In non-chordates, central nervous system is ventral, solid and double.
(v) Pinnae are present in mammals.
What is the correct answer?
4
Polyp phase is absent in
What is the correct answer?
4
Which of the following possesses electric organs and belongs to class chondrichthyes?
What is the correct answer?
4
Select the incorrect feature of mollusca from the given statements.
- Terrestrial or aquatic animals having cellular system level of organization.
- Radial symmetrical and acoelomate animals and possesses two germinal layers.
- A file like rasping organ called radula is present.
- Usually dioecious and viviparous animals.
- Examples include Pila, Octopus, and Dentalium.
C. (i), (ii) and (iv) only
D. All the five statements.
What is the correct answer?
4
Which of the following characteristic is probably most responsible for the great diversification of insects on land ?
What is the correct answer?
4
Heart is three - chambered in reptiles, except
What is the correct answer?
4
Which of the following animal contains respiratory organs like, gills, book gills, book lungs or tracheal system?
What is the correct answer?
4
The given figures (A & B) shows the germinal layer. The animals having structures shown in the figures are respectively called
A. diploblastic, triploblastic
B. triploblastic, diploblastic
C. diploblastic, diploblastic
D. triploblastic, triploblastic
What is the correct answer?
4
Which of the following is a poisonous snake?
What is the correct answer?
4
Flame cells present in platyhelminthes, are specialized in
A. respiration and absorption.
B. osmoregulation and circulation.
C. respiration and excretion.
D. osmoregulation and excretion.
What is the correct answer?
4
The transition from aquatic to terrestrial lifestyles required many adaptations in the vertebrate lineage. Which of the following is not one of those adaptations ?
A. Switch from gill respiration to air-breathing lungs.
B. Improvements in water resistance of skin.
C. Alteration in mode of locomotion.
D. Development of feathers for insulation.
What is the correct answer?
4
Which of the following group of animals belongs to the same phylum?
A. Earthworm, pinworm, tapeworm
B. Prawn, scorpion, Locusta
C. Sponge, Sea anemone, starfish
D. Malarial parasite, Amoeba, mosquito
What is the correct answer?
4
The given figure shows some characteristic features marked as chordates. Identify the correct labelling A,B,C and D.
A. A-Notochord; B-Post-anal part; C-Gill slits; D-Nerve cord
B. A-Nerve cord; B-Notochord; C-Post-anal part; D-Gill slits
C. A-Notochord; B-Nerve cord; C-Gill slits; D-Post-anal part
D. A-Gill slits; B-Post-anal part; C-Nerve cord; D-Notochord
What is the correct answer?
4
In phylum arthropoda, excretion takes place through
What is the correct answer?
4
Refer the following animals and identify those which have a fluid filled body cavity with a complete lining derived from mesoderm.
(i) Sycon (ii) Butterfly
(iii) Nereis (iv) Sea fan
(v) Scorpion (vi) Pila
C. (ii), (iii), (v) and (vi) only
What is the correct answer?
4
Which of the following statements (i v) are incorrect?
(i) Parapodia are lateral appendages in arthropods used for swimming.
(ii) Radula in molluscs are structures involved in excretion.
(iii) Aschelminthes are dioecious.
(iv) Echinoderm adults show radial symmetry.
(v) Ctenophorans are diploblastic.
What is the correct answer?
4
Which of the following statement(s) is/are correct regarding phylum aschelminthes?
(i) The body is circular in cross-section hence the name roundworms.
(ii) Alimentary canal is complete with a well-developed muscular pharynx.
(iii) Sexes are separate (dioecious), i.e., males and females are distinct.
(iv) Nephridia help in osmoregulation and excretion.
What is the correct answer?
4
Which of the following is an incorrect statement regarding flatworms ?
B. They are bilaterally symmetrical.
C. They lack a digestive system.
D. They have a circulatory system.
What is the correct answer?
4
Which one of the following groups of animals is correctly matched with its characteristic feature without even a single exception ?
A. Reptilia : possess 3 - chambered heart with one incompletely divided ventricle.
B. Chordata : Possess a mouth provided with an upper and lower jaw.
C. Chondrichthyes : Possess cartilaginous endoskeleton.
D. Mammalia : Give birth to young one.
What is the correct answer?
4
Which of the following is a fresh water sponge?
What is the correct answer?
4
Refer the given figures A, B, C and D and identify the option which shows their correct name.
A. A - Pleurobrachia, B - Cnidoblast, C - Aurelia, D - Adamsia
B. A - Aurelia, B - Adamsia, C - Cnidoblast, D - Pleurobrachia
C. A - Cnidoblast, B - Pleurobrachia, C - Adamsia, D - Aurelia
D. A - Adamsia, B - Aurelia, C - Pleurobrachia, D - Cnidoblast
What is the correct answer?
4
Which of the following statement(s) is/are correct regarding phylum mollusca?
A. They are bilaterally symmetrical, triploblastic and coelomate animals.
B. Body is covered by a calcareous shell and is unsegmented with a distinct head, muscular foot and visceral hump.
C. The mouth contains a file-like rasping organ for feeding, called radula.
What is the correct answer?
4
Which of the following pairs of animals comprises jawless fishes?
B. Lampreys and hag fishes
C. Guppies and hag fishes
What is the correct answer?
4
Identify the figure with its correct name and phylum.
A. Cucumaria – Echinodermata
C. Balanoglossus – Hemichordata
D. Hirudinaria – Annelida
What is the correct answer?
4
Which of the following statement(s) is/are correct regarding phylum coelenterata?
(i) They are aquatic, mostly marine, sessile or freeswimming, radially symmetrical animals.
(ii) They have a central gastro-vascular cavity with a single opening called hypostome.
(iii) Digestion is extracellular and intracellular.
(iv) Examples are Sycon, Spongilla and Euspongia.
What is the correct answer?
4
Examine the figures A, B and C. In which one of the four options all the items A, B and C are correctly identified ?
A. A - Sycon, B - Euspongia, C - Spongilla
B. A - Euspongia, B - Spongilla, C - Sycon
C. A - Spongilla, B - Sycon, C - Euspongia
D. A - Euspongia, B - Sycon, C - Spongilla
What is the correct answer?
4
Which one of the following statement regarding coelom of given animals is correct?
A. Round worms (aschelminthes) are pseudocoelomates.
B. Molluscs are acoelomates.
C. Insects are pseudocoelomates.
D. Flatworms (platyhelminthes) are coelomates.
What is the correct answer?
4
Which of the following belong to phylum arthropoda?
B. Laccifer and Anopheles