Explore topic-wise MCQs in Biology.

This section includes 332 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

251.

The stinging cells which are organs of offense and defense are called

A. defense cells
B. flame cells
C. nematocysts
D. bulbs
Answer» D. bulbs
252.

Larynx and epiglottis is well developed and present in

A. reptiles
B. mammals
C. birds
D. amphibians
Answer» C. birds
253.

Eutheria is class of mammals which include placental mammals including

A. birds
B. reptiles
C. humans
D. spiders
Answer» D. spiders
254.

The common name for Enterobius vermicularius is

A. tape worms
B. pinworm
C. liver fluke
D. ring worm
Answer» C. liver fluke
255.

The animals of division Radiata

A. triploblastic
B. diploblastic
C. radioblastic
D. None of Above
Answer» C. radioblastic
256.

Sponges are used in the surgical operations for absorption of

A. minerals
B. blood and fluids
C. nutritions
D. all of these
Answer» C. nutritions
257.

The digestive system of sharks and rays is

A. L-shape
B. J-shape
C. U-shape
D. O-shape
Answer» C. U-shape
258.

The well developed nervous system of Platyhelminthes composed of network of

A. tracts
B. ducts
C. veins
D. ganlia
Answer» E.
259.

The gastrovascular cavity for entry of food as well as removal of waste constitutes sac like

A. digestive system
B. excretory system
C. nervous system
D. circulatory system
Answer» B. excretory system
260.

The undulating waves of contraction and relaxation of muscles helps Nematodes in

A. excretion
B. digestion
C. locomotion
D. all of these
Answer» D. all of these
261.

The abdominal pouch of class metatheria is called as

A. pouch
B. kangaroo pouch
C. marsupium
D. None of Above
Answer» D. None of Above
262.

Chitinous Setae are the locomotry organs of annelids which are present on

A. parapodia
B. cell wall
C. prostomium
D. None of Above
Answer» B. cell wall
263.

Generations reproduced sexuallly and asexually in coelenterates are

A. haploid
B. diploid
C. triploblastic
D. diploblastic
Answer» C. triploblastic
264.

Arthropods have well developed excretory system, which is composed of

A. nephridia
B. annus
C. setae
D. Malphigian tubules
Answer» E.
265.

Choose the correct combination of the following [CPMT 2000]

A. Annelida and porifera-phyla
B. Aves and chordata-classes
C. Mollusca and hydrozoa-classes
D. Oligochaeta and arthropoda-phyla
Answer» B. Aves and chordata-classes
266.

Systematic position of echinoderms is between

A. Arthropods and Molluscs
B. Molluscs and Chordates
C. Invertebrates and Chordates
D. None of these
Answer» D. None of these
267.

Coelom is cavity found between [JIPMER 2000]

A. Ectoderm and Endoderm
B. Mesoderm and Endoderm
C. Body wall and ectoderm
D. Mesoderm and body wall
Answer» B. Mesoderm and Endoderm
268.

Sea cows are aquatic mammals included under [MP PMT 2001]

A. Lagomorpha
B. Pinnipedia
C. Cetacea
D. Sirenia
Answer» E.
269.

Which of the following snake is not poisonous [AIIMS 2000; CPMT 2001]

A. Naja naja
B. Python
C. Bungarus
D. Hydrophis
Answer» C. Bungarus
270.

Temperature regulation is founds in [DPMT 1983]

A. Rat
B. Fish
C. Frog
D. Lizard
Answer» B. Fish
271.

In which of the following groups the members are exclusively marine

A. Aquatic vertebrates
B. Tetrapoda
C. Pisces
D. Protochordata
Answer» E.
272.

Taenia saginata differs from Taenia solium in  [CBSE PMT 1990]

A. Absence of scolex hooks
B. Absence of scolex hooks and uterine branching
C. Absence of scolex hooks and presence of both male and female reproductive organs
D. Presence of scolex hooks
Answer» B. Absence of scolex hooks and uterine branching
273.

In suborder ophidia, the vertebrae are [EAMCET 1998; BHU 1999]  

A. Amphicoelus
B. Acoelus
C. Heterocoelus
D. Procoelus
Answer» E.
274.

Animals have the innate ability to escape from predation. Examples for the same are given below. Select the incorrect example. [CBSE PMT 2005]

A. Colour change in chameleon
B. Enlargement of body size by swallowing air in puffer fish
C. Poison fangs in snakes
D. Melanism in moths
Answer» D. Melanism in moths
275.

Scientific name of king cobra is [Orissa PMT 2002]

A. Naja naja
B. Bungarus coerulus
C. Naja hunnah
D. Vipera russelli
Answer» D. Vipera russelli
276.

Diapside skull is found in the following [MP PMT 2001]

A. Natrix, Draco and Turtle
B. Crocodile, Turtle and Seymouria
C. Sphenodon, Crocodile and Viper
D. Calotes, Cobra and Varanosaurus
Answer» D. Calotes, Cobra and Varanosaurus
277.

Snake has [MH CET 2000; Pb. PMT 2004]

A. Movalbe eyelids
B. No eyelids
C. Immovable eyelids
D. Eyelids placed in pouches
Answer» D. Eyelids placed in pouches
278.

Calotes versicolor is a [Orissa JEE 1997]

A. House lizard
B. Garden lizard
C. Flying lizard
D. Rock lizar
Answer» C. Flying lizard
279.

Which is correct for Indian snakes [MP PMT 1992]

A. Only sea snakes are non-poisonous
B. Only sea snakes are poisonous
C. All water snakes are poisonous
D. All sea snakes are poisonous
Answer» E.
280.

Only poisonous lizard of the world is

A. Draco
B. Heloderma
C. Sphenodon
D. Varanus
Answer» C. Sphenodon
281.

Teeth conducting poison in a snake are called [CPMT 1986]

A. Incisors
B. Canines
C. Heterodont
D. Fangs
Answer» E.
282.

Whose skin colour does not change [MP PMT 1995]

A. Chameleon
B. Horse
C. Garden lizard
D. Two of the above
Answer» C. Garden lizard
283.

Which is a true fish [CPMT 1984]

A. Cat fish
B. Jelly fish
C. Cuttle fish
D. Silver fish
Answer» B. Jelly fish
284.

At present, the Dipnoans are distributed over[Manipal 2003]

A. Europe and North America
B. Latin America and Australia
C. Europe and Latin America
D. North America and Australia
Answer» C. Europe and Latin America
285.

Which of the following is a migratory fish [AFMC 2001]

A. Shark
B. Salmon
C. Carp
D. Ribbon fish
Answer» C. Carp
286.

In one of the following fishes, the dorsal fin is modified into suckers [EAMCET 1999]

A. Torpedo
B. Echeneis
C. Hippocampus
D. Neoceratodus
Answer» C. Hippocampus
287.

Which is viviparous [JIPMER 1986, 98]

A. Bony fish
B. Lung fish
C. Frog
D. Shark
Answer» E.
288.

The most poisonous fish is

A. Porcupine fish
B. Stone fish
C. Catfish
D. Scorpion fish
Answer» C. Catfish
289.

Mermaid's purse refers to

A. Egg capsules of sharks and skates
B. A colony of skates and rays
C. Brood pouch of sea horse
D. All of these
Answer» B. A colony of skates and rays
290.

Heart of fishes is

A. One chambered
B. Two chambered
C. Three chambered
D. Four chambered
Answer» C. Three chambered
291.

Swim bladder or air bladder is present only in

A. Fish
B. Amphibia
C. Aquatic reptilia
D. Aquatic mammals
Answer» B. Amphibia
292.

One of the following is a very unique feature of the mammalian body [CPMT 1987; CBSE PMT 2004]

A. Four chambered heart
B. Rib cage
C. Homeothermy
D. Presence of diaphragm
Answer» E.
293.

Jaw suspension characteristic of mammals is [MP PMT 2002]

A. Amphistylic
B. Craniostylic
C. Autodiastylic
D. Hyostylic
Answer» D. Hyostylic
294.

Which of the following is not a mammalian character [MH CET 2002]

A. Hairy skin
B. Muscular diaphragm
C. 3-chamberd heart
D. RBCs enucleated
Answer» D. RBCs enucleated
295.

Echidna is found in [BHU 2001]

A. India
B. Africa
C. Malaysia
D. Australia
Answer» E.
296.

The zoological name of lion is [MP PMT 2000]

A. Felis leo
B. Panthera tigris
C. Panthera pardus
D. Panthera leo persica
Answer» E.
297.

Locomotion in Kangaroo is [AFMC 1991]

A. Saltatorial
B. Volant
C. Cursorial
D. Creeping
Answer» B. Volant
298.

The sweat gland are scanty in [CPMT 1988]

A. Elephant
B. Man
C. Rabbit
D. Polar bear
Answer» E.
299.

Which animal eats its own faeces [CPMT 1985]

A. Pig
B. Goat
C. Rabbit
D. Elephant
Answer» D. Elephant
300.

Constant body temperature is found in [DPMT 1985]

A. Earthworm
B. Snake
C. Frog
D. Cow
Answer» E.