MCQ on Animal Kingdom   

MCQ on Animal Kingdom MCQ on Animal Kingdom 

1. In Pheretima, septa are absent between which segments?

a) 3/4 and 9/10                
b) 4/5 and 8/9   
c) 5/6 and 7/8   
d) 7/8 and 6/7

2. In frogs, oviduct is formed by

a) Wolffian duct               
b) Metanephric duct      
c) Mullerian duct             
d) Bidder’s canal

3. The life span of honey bee drone is

a) 3-4 months   
b) 1-2 months   
c) 6-7 months   
d) 10-12months

4. A group of animals having marsupium is

a) Nonotremata
b) Eutheria         
c) Metatheria   
d) Pantotheria

5. What will you look for to identity the sex of the following?

a) Male frog – a copulatory pad on the first digit of the hind limb

b) Female cockroach – anul ceri

c) Male shark – claspers borne on pelvic fins

d) Female Ascaris – sharply curved posterior end

6. The excretory cells, that are found in Platyhelminthes are

a) Protonephridia           
b) Flame cells    
c) Solenocytes  
d) All of these

7. Ommatidia serve the purpose of photoreception in

a) Humans          
b) Sunflower     
c) Cockroach     
d) Frog

8. Periplaneta has no respiratory pigment in its blood because

a) Air is conducted directly to the body tissues   
b) It has haemocoelom

c) It has anaerobic respiration    
d) It lacks blood cells in the blood

9. Wuchereria bancrofti is a common filarial worm. It belongs to phylum

a) Platyhelminthes         
b) Nemathelminthes     
c) Annelida        
d) Coelenterata

10. The cross-section of the body of an invertebrate is given below. Identify the animal, which has this body plan.   

a) Cockroach     
b) Roundworm
c) Planaria          
d) Earthworm

11. In earthworm, the characteristic internal median fold of dorsal wall of the intestine called typhlosole is present in

a) 5 to 9 segments
b) 9 to 14 segments       
c) 26 to 35 segments     
d) 15 to last segment

12. Which of the following phyla are schizocoela?

a) Annelida, Platyhelminthes and Mollusca

b) Annelida, Arthropoda and Mollusca

c) Platyhelminthes, Aschelminthes and Annelida

d) Aschelminthes, Annelida and Mollusca

13. Columella auris is found in

a) Rabbit             
b) Frog 
c) Man 
d) All of these

14. Which one of the following is not a bird?

a) Magpie
b) Albatross       
c) Himalayan quail           
d) Bufo

15. Which of the following blood vessels in the circulatory system of frog has more oxygenated blood?

a) Pulmocutaneous artery           
b) Pulmocutaneous vein
c) Pulmonary artery       
d) Precaval veins

16. Which one of the following features is common to leech, cockroach and scorpion?

a) Nephridia      
b) Ventral nerve cord    
c) Cephalization
d) Antennae

17. Which of the following cell types is capable of giving rise to other cell types in sponges?

a) Thesocytes   
b) Pinacocytes  
c) Cnidocytes    
d) Archaeocytes

18. Necturus is commonly known as

a) The flying frog             
b) The mud puppy
c) The crested newt       
d) The toad

19. Which of the following display retrogressive metamorphosis?

a) Salpa and Herdmania
b) Doliolum and Oikopleura
c) Pyrosoma      
d) All of these

20. Which of the following is true of Aves?

a) They are poikilotherms and have a three chambered heart

b) Tiny pebbles eaten by some birds and are used in crushing                                                                                                                                                                                                                      
c) They have 10 pairs of cranial nerves

d) All of the above

1              (a)

In Pheretima posthuma (earthworm), septae are absent between 3/4 and 9/10 segments.

2              (c)

Oviducts of frog are independently developed by Mullerian ducts.

3              (b)

Drones are the male honey bees, developed parthenogenetically and have a life span of about five weeks (or 1-2 months).

4              (c)

Metatherians are pouched mammals. The complete development of embryo takes place in abdominal pouch or marsupium.

5              (c)

A clasper is a male anatomical structure found in some groups of animals, and used in mating.  Male cartilaginous fish like shark have claspers formed from the posterior portion of their pelvic fin which serves as intromittent organs used to channel semen into the female’s cloaca during mating.

6              (d)

Platyhelminthes (e.g., Planaria, liver fluke and tapeworm) possess the simplest tubular excretory system called protonephridia flame cells or solenocytis. Excretory material is ammonia in aquatic flatworms.

7              (c)

Ommatidium is the basic unit of arthropod compound eye. It comprises a cornea lens, crystalline cone, a group of usually 7-8 retinal cells radially arranged around a central rhabdome. Ommatidia serve the purpose of photoreception.

8              (a)

In the blood of Periplaneta, there is no respiratory pigment because air is conducted directly to the body tissues.

9              (b)

Wuchereria bancrofti (the filarial worm) belongs to phylum-Nemathelminthes.

10           (c)

The given cross-section is of Planaria (acoelomate), a flatworm. Flatworms are devoid of cavities in between the alimentary canal and body wall, hence are acoelomate.

11           (c)

Typhlosolar region in earthworm is from 27 segments onwards and continue upto last 23-25 segments in front of anus. Typhlosole increases the absorptive surface area.

12           (b)

When the coelom arises as a result of a split in the mesoderm sheet, it is called schizocoel. In enterocoel, the coelom arises as an outgrowth of the enteron. The pouches pinch off and enlarge until they squeeze out off the blastocoel.

Schizocoel is seen in Annelida, Arthropoda, Mollusca and Chordates. Echinodermata are entercoelomates

13           (b)

The middle ear of frog consists of only a single rod shaped bone called columella auris which extend across the tympanic chamber from tympanic membrane to fenestra ovalis. Columella auris is also present in reptiles and birds. It transmits sound to the inner ear and homologous to the mammalian stapes.

14           (d)

Most of the species of true toad belongs to genus Bufa.

15           (b)

The oxygenated blood from two lungs is collected by right and left pulmonary venis, which unite to from a common pulmonary vein (pulmocutaneous vein) which open directly into the left auricle on the dorsal side.

16           (b)

Ventral nerve cord is common to leech (Annelida), cockroach and scorpion (Arthropoda).

17           (d)

Archaeocytes are the totipotent cells, which provide great regenerating power to sponges. Sex cells (sperm and ova) arise from undifferentiated archaeocytes.

18           (b)

Necturus is also known as mud puppy and belongs to sub-class-Urodela

19           (d)

Metamorphosis is a charge from juvenile to adult stage in which larval stage is quite different from adult stage. In retrogressive metamorphosis, the larva possesess advanced characters which are lost during the development and adult is either sedentary or degenerated with primitive characters. All urochordates display retrogressive metamorphosis

20           (b)

Aves have two additional chambers to the alimentary canal: the crop and the gizzard. Birds eat tiny pebbles that lodge in the gizzard and help the muscular gizzard in crushing food. Birds have 12 pairs of cranial nerves