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.

101.

Amphibians are poikilothermix, therefore they use to hibernate in

A. winter
B. summer
C. autumn
D. spring
Answer» B. summer
102.

Cleavage in which planes of cleavage are symmetrical to polar axis and produce tiers of cells is radial and

A. spiral
B. indeterminate
C. determinate
D. independent
Answer» C. determinate
103.

Mesoderm is derived from wall of developing gut (archentron) in series

A. deutrostomia
B. pterostomia
C. protrostomia
D. pretostomia
Answer» B. pterostomia
104.

Lower jaw of mammals is composed of only one

A. Teeth
B. bone
C. cartilage
D. muscles
Answer» C. cartilage
105.

Body of mammals is covered by

A. feathers
B. hairs
C. scales
D. fins
Answer» C. scales
106.

Animals which have both features of mammals and reptiles together, include

A. duckbill platypus
B. spiny ant eater
C. wolves
D. Both a and b
Answer» E.
107.

Chitinous Setae are locomotry organs of annelids which are present on

A. parapodia
B. cell wall
C. prostomium
D. nucleolus
Answer» B. cell wall
108.

Neiris belong to class

A. polychaeta
B. hirudinea
C. oligochaeta
D. animalia
Answer» B. hirudinea
109.

If two different types of individuals structurally or functionally occur in same organism, this condition is called

A. heteromorphism
B. morphism
C. polymorphism
D. hypomorphism
Answer» D. hypomorphism
110.

Animals of division Radiata are

A. triploblastic
B. diploblastic
C. radioblastic
D. quadroblastic
Answer» C. radioblastic
111.

Balanoglossus and Saccoglossus belongs to the phylum

A. radiata
B. bilateria
C. fungi
D. hemichordate
Answer» E.
112.

The embryo of Taenia is inside the egg and contain chitinous hook that are in number

A. 6
B. 7
C. 5
D. 9
Answer» B. 7
113.

Hydra and obelia are

A. parasites
B. sessile
C. protists
D. cones
Answer» C. protists
114.

The blood of arthropods is colorless due to lack of

A. hemoglobin
B. immunoglobin
C. chromatin
D. None of Above
Answer» B. immunoglobin
115.

Sponges are

A. sessile
B. parasite
C. prokaryotes
D. eukaryotes
Answer» B. parasite
116.

The 'little ring' is common name for organism of Phylum

A. Protozoa
B. Aneelida
C. platyhelminthes
D. Nematoda
Answer» C. platyhelminthes
117.

Group of animals which have bilateral symmetry are known as Grade

A. Radiata
B. Chordata
C. Bilateria
D. None of Above
Answer» D. None of Above
118.

Single mouthed sac like digestive cavity in cnidarian is called

A. osulum
B. ostia
C. enteron
D. canal
Answer» D. canal
119.

The free living specie that feed on small animals and bodies of deads and decaying is

A. spleen
B. liver worts
C. Adiantum
D. Planaria
Answer» E.
120.

The skeleton of sponges is composed of needlelike structures called

A. spicules
B. ostia
C. osculum
D. spongecoel
Answer» B. ostia
121.

Mammals which give birth to the young ones of their own kind are called

A. oviparous
B. viviparous
C. ovoviviparous
D. None of Above
Answer» C. ovoviviparous
122.

The bulb like cells which are performing eccretory functions are

A. neurospore
B. flame cells
C. rhizoids
D. ganlia
Answer» C. rhizoids
123.

Insects which eat dead animals and vegetables are known as

A. parasites
B. hermaphrodite
C. actinopods
D. scavengers
Answer» E.
124.

A harmful molluscus which is injurious to gardens and cultivations is termed as

A. oyster
B. octopus
C. feredo
D. slug
Answer» E.
125.

There are four bands of muscles in Nematodes, two are dorso-lateral and two

A. ventro-lateral
B. dorso-ventral
C. Both A and B
D. None of Above
Answer» B. dorso-ventral
126.

The lobed structure which is present at the mouth of alimentary canal of annelids is termed as

A. nephridia
B. mucus
C. anus
D. prostomium
Answer» E.
127.

Endo-parasite which live in bile duct of a human and sheep is

A. tape worms
B. liver worts
C. Fasciola
D. round worms
Answer» D. round worms
128.

If two different types of individuals structurally or functionally occur in same organism is called

A. heteromorphism
B. morphism
C. polymorphism
D. None of Above
Answer» D. None of Above
129.

The organ of voice in bird is called a

A. trachea
B. syrinx
C. air sacs
D. balloon
Answer» C. air sacs
130.

The evidences suggests that birds have been evolved from ancestors of

A. amphibians
B. insects
C. dinosaurs
D. reptiles
Answer» E.
131.

The bones in ear of mammals are

A. Malleus
B. Ineus
C. staples
D. All of Above
Answer» E.
132.

The ability to reform its lost organ in animals is called as

A. mitosis
B. meiosis
C. regeneration
D. regrowth
Answer» D. regrowth
133.

Annelids have specialized structure for excretion called

A. flame cells
B. nephridia
C. bulb cells
D. none
Answer» C. bulb cells
134.

Birds have developed a thick muscular organ which helps in crushing of food called

A. jaws
B. beak
C. tongue
D. gizzard
Answer» E.
135.

The aggregation of individuals that perform different functions constitutes a

A. population
B. medusae
C. colony
D. specie
Answer» D. specie
136.

The presence of bony brain in chordates is called as

A. chordates
B. notochord
C. tunicates
D. craniates
Answer» E.
137.

Sleeping sickness and skin diseases are caused by Tsetse fly which transmits chemical called

A. plasmodium
B. trypanosome
C. poison
D. wax
Answer» C. poison
138.

Centipede and millipedes are examples of class

A. Myriapodia
B. insecta
C. Arachnida
D. crustacean
Answer» B. insecta
139.

There are two types of muscles in annelids on the basis of arrangement of

A. flame cells
B. nephridia
C. muscles
D. chitin
Answer» D. chitin
140.

Archaeopteryx has much resemblance to dinosaurs and each wing had

A. 3 claws
B. 4 claws
C. 5 claws
D. 2 claws
Answer» B. 4 claws
141.

Umbrella like form which are free swimming and possess sexual reproduction are

A. medusae
B. tentacles
C. rhizoids
D. gastrozoids
Answer» B. tentacles
142.

Class amphibian, reptilian, aves and mammalian belong to sub-phylum called

A. pices
B. echinodermata
C. chordate
D. tetrapoda
Answer» E.
143.

Glandular epithelia envelope which secretes calcareous shell is called

A. chitin
B. exoskeleton
C. mantle
D. None of Above
Answer» D. None of Above
144.

The mesoderm is derived from wall of developing gut (archentron) in the series

A. Deutrostomia
B. pterostomia
C. Both A and B
D. None of Above
Answer» B. pterostomia
145.

Mesentries are prominent in the enteron of the body of the

A. Actinia
B. sea anemone
C. jelly fish
D. obelia
Answer» B. sea anemone
146.

Nematoda means

A. pointed ends
B. pointed bodies
C. pointed cells
D. None of Above
Answer» B. pointed bodies
147.

oviducts and ovaries are both functional in

A. eagle
B. crow
C. reptiles
D. raven
Answer» B. crow
148.

The cylindrical animals which are nutritive in function are polps of cnidarian and named as

A. rhizoids
B. gastrozoids
C. Both A and B
D. None of Above
Answer» B. gastrozoids
149.

The liver oil which is used in medicine as a source of multivitamin(A and D) is obtained from

A. shark
B. ray
C. eel
D. dolphin
Answer» B. ray
150.

The nerve ring is found in the pharyngeal region of

A. molluscus
B. annelids
C. echinoderms
D. arthropods
Answer» D. arthropods