Explore topic-wise MCQs in Biology.

This section includes 295 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

51.

Vector of malaria parasite is

A. Male Culex
B. Male Anophles
C. Female Culex
D. Female Anophles
Answer» E.
52.

The pigment found in the blood of earthworm is

A. Hemocyanine
B. Hematine
C. Haemoglobine
D. Cynine
Answer» B. Hematine
53.

Life cycle of Plasmodium in mosquito was discovered by

A. Louis Pasture
B. Ronald Ross
C. Charles Darwin
D. Mendal
Answer» C. Charles Darwin
54.

Ticks and mites are actually

A. Arachnids
B. Crustanceans
C. Insects
D. Myriapods
Answer» B. Crustanceans
55.

Haemocoel is found in

A. Arthrolpoda
B. Coelenterata
C. Porifera
D. Annelida
Answer» B. Coelenterata
56.

Grass hopper is a/an

A. Bird
B. Disease
C. Chemical
D. Insect
Answer» E.
57.

Phylum Coelenterata is also known as

A. Protozoa
B. Porifera
C. Cnidaria
D. Annelida
Answer» D. Annelida
58.

Which one of the following is known as yenus's flower

A. Sycon
B. Euspongia
C. Euplectella
D. None of these
Answer» D. None of these
59.

Which of the following is not a diploblastic phylum?

A. Coelenterata
B. Porifera
C. Platyhelminthes
D. Cnidaria
Answer» D. Cnidaria
60.

Locomotory organ of hydra is

A. Pseudopodia
B. Cilia
C. Tentacles
D. Flagella
Answer» D. Flagella
61.

Which of the following is not a mammal

A. Fish
B. Bat
C. Whale
D. Man
Answer» B. Bat
62.

Metamerism is the characteristic feature of the phylum

A. Porifera
B. Annelida
C. Platyhelminthes
D. Mollusca
Answer» C. Platyhelminthes
63.

Poison in scorpion is found in

A. Mouth
B. Leg
C. Hand
D. Telson
Answer» E.
64.

Characteristic feature of class Insecta is

A. Three pairs of leg
B. Two pair antena
C. One pair of antena
D. Four pair antena
Answer» B. Two pair antena
65.

The disease Kala-azar is spread by

A. Sand fly
B. Bed bug
C. Heas louse
D. None of these
Answer» B. Bed bug
66.

The phylum that includes exclusively marine animal is

A. Porifera
B. Coelenterata
C. Protozoa
D. Echinodermata
Answer» E.
67.

Round worm comes under phylum

A. Annelid
B. Nemalehelminthes
C. Platyhelminthes
D. Arthropoda
Answer» C. Platyhelminthes
68.

Sea snake is called

A. Cuttle fish
B. Devi fish
C. Hydro fish
D. Silver fish
Answer» D. Silver fish
69.

Immortality is a property found in

A. Spong
B. Hydra
C. Earthworm
D. Cockroach
Answer» C. Earthworm
70.

Cartilagenous fish differ from bony fish in having

A. Uncovered gills
B. Heterocercal tail
C. Ventral mouth and nares
D. All of these
Answer» E.
71.

Open circulatory sytem is found in

A. Cockroach
B. Earthworm
C. Fishes
D. None of these
Answer» B. Earthworm
72.

The most Poisonous snake is

A. Rattle snake
B. Python
C. Krait
D. Tree snake
Answer» D. Tree snake
73.

Which of the following Mammal is oviparus

A. Rat
B. Kangaroo
C. Platypus
D. Tree snake
Answer» D. Tree snake
74.

Dengue is transmitted by

A. Culey
B. Male anophels
C. Aedes
D. Female anophels
Answer» D. Female anophels
75.

Amphibians are the animals that

A. Live in water
B. Only live on land
C. Live both on land and water
D. None of these
Answer» D. None of these
76.

How many chamber is found in the heart of frog

A. 2
B. 3
C. 4
D. 5
Answer» C. 4
77.

Small pores found in the body of sponges are

A. Ostia
B. Osuculum
C. Redulla
D. Cilia
Answer» B. Osuculum
78.

Animal goes under winter sleep due to low temperature is called

A. Mutation
B. Regeneration
C. Hiberanation
D. Aestivation
Answer» E.
79.

Connecting link between Annelida and Arthropoda is

A. peripatus
B. Hydra
C. Earthworm
D. Sylon
Answer» B. Hydra
80.

Aristotle lantern is found in

A. Star fish
B. Brittle star
C. Sea urchin
D. Sea cucumber
Answer» D. Sea cucumber
81.

Octopus comes under phyllum

A. Arthropoda
B. Hemichordata
C. Mollusca
D. Echinodermata
Answer» D. Echinodermata
82.

Ascaris is found in

A. The intestine of man
B. Muscles of pig
C. Coelom of human
D. In the blood of man
Answer» B. Muscles of pig
83.

Penguin is found only in

A. Asia
B. Africa
C. Antarctica
D. America
Answer» D. America
84.

Which of the following is not a snake

A. Viper
B. Krait
C. Rattle snake
D. Draco
Answer» E.
85.

Which of the following worm reach into intestine of human by eating leaf

A. Tape worm
B. Flat worm
C. Hook worm
D. Round worm
Answer» B. Flat worm
86.

Sound producing organ in bird is

A. Larynx
B. Syrinx
C. Pygostyle
D. Synsacrum
Answer» C. Pygostyle
87.

Locomotary organs of Amoeba are

A. Cilia
B. Flagella
C. Pseudapodia
D. Tentacles
Answer» D. Tentacles
88.

Which one of following group of animals are Primates

A. Giraffes and Zebra
B. Kangaroo and Koalas
C. Lemurs
D. Rabbits and Hares
Answer» D. Rabbits and Hares
89.

Which of the following is true fish

A. Starfish
B. Jelly fish
C. Cuttle fish
D. Sea horse
Answer» E.
90.

Which of the following is a true fish

A. Flying fish
B. Cry fish
C. Cuttle fish
D. Silver fish
Answer» B. Cry fish
91.

In which one of the following animals, is skin a respiratory organ?

A. Cockroach
B. Frog
C. Spark
D. Whale
Answer» C. Spark
92.

The Disease sleeping sickness is spread by

A. Tse-Tse fly
B. Sand fly
C. Bed bug
D. Head louse
Answer» B. Sand fly
93.

Aristotle lantern is

A. A fresh water echinodermata
B. A toothed chewing apparatus found in sea-ruchin
C. Circulatory system found in star fish
D. A lantern like structure found in brittle star
Answer» C. Circulatory system found in star fish
94.

Poisonous lizard is

A. Chameleon
B. Astrodon
C. Heloderma
D. Varanus
Answer» D. Varanus
95.

Substance found in blood which helps in cloting

A. Fibrinogen
B. Heparin
C. Thrombin
D. Globine
Answer» B. Heparin
96.

Mammoth is ancestor of

A. Dog
B. Horse
C. Camel
D. Elephant
Answer» E.
97.

Protozoa which produce Kala-azar

A. Entamoeba
B. Trypanosoma
C. Trichomonas
D. Leishmania
Answer» E.
98.

Dinosaurs were

A. Mammal which became extinct
B. Large harbivorus animal
C. Oviparous mammal
D. Reptile which became extinct
Answer» E.
99.

Closed circulatory sytem is found in

A. Cockroach
B. Shail
C. Cuttle fish
D. All
Answer» D. All
100.

A common feature of all vertebrates is

A. Skull
B. Division of body into head, neck, trunk and tail
C. Two pair of functional appendages
D. Exoskeleton
Answer» B. Division of body into head, neck, trunk and tail