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.

1.

Larva of frog is called

A. Pupa
B. Maggote
C. Catter piller
D. Tadpole
Answer» E.
2.

Which of the following is mostly cold blooded animal?

A. Rabbit
B. Pigeon
C. Shark
D. Kangaroo
Answer» D. Kangaroo
3.

The release of which one the following into wells helps in controlling the mosquitoes

A. Crab
B. Dogfisg
C. Gambusia fish
D. Snail
Answer» D. Snail
4.

Generally Insects respire through

A. Skin
B. Gill
C. Lung
D. Spiricle
Answer» E.
5.

Number of arm found in ortopus is

A. 4
B. 5
C. 6
D. 8
Answer» E.
6.

Anopheles and Culex mosquitos cam be distinguished with the help of

A. Antennae
B. Mouth part
C. Sitting posture
D. Feeding habits
Answer» D. Feeding habits
7.

Urine of mammal contains excretory product

A. Uric acid
B. Ammonia
C. Urea
D. All of these
Answer» D. All of these
8.

Jointed appendages are characteristic of phylum

A. Annelida
B. Echinodomata
C. Mollusca
D. Arthropoda
Answer» E.
9.

Which of the following is not a poisonous snake

A. Annelida
B. Echinodomata
C. Mollusca
D. Arthropoda
Answer» E.
10.

Connecting link between Annelida and Mollusca is

A. meopalina
B. Ketoderma
C. Dentalium
D. Unio
Answer» B. Ketoderma
11.

Largest Indian fish is

A. Stone fish
B. Whale shark
C. Hilsa
D. None of these
Answer» C. Hilsa
12.

Unicellular non-pathogenic parasite found in the human intestine is

A. E, coli
B. Entamoeba histolytica
C. Trypanosoma
D. Entamoeba gingivalies
Answer» B. Entamoeba histolytica
13.

Coral reefs are formed by phylum

A. Protozoa
B. Coelenterata
C. Arthropoda
D. Porifera
Answer» C. Arthropoda
14.

In Starfish, the organs having a dual role of locomotion and respiration are

A. Madreporite
B. Dermal branchiae
C. Tube feet
D. Tiedman's bodies
Answer» D. Tiedman's bodies
15.

Which part of cockroach bears exo and endoskeleton?

A. Thorax
B. Head
C. Abdomen
D. None of these
Answer» C. Abdomen
16.

Honey bee and wasps are grouped under class is

A. Insecta
B. Crustacea
C. Diplopoda
D. Arachina
Answer» B. Crustacea
17.

Number of chamber found in the heart of whale

A. 2
B. 3
C. 4
D. 1
Answer» D. 1
18.

Number of chamber found in the heart of Mammal

A. 2
B. 3
C. 4
D. 1
Answer» D. 1
19.

Pheromones are found in

A. Insect
B. Snake
C. Birds
D. Bat
Answer» B. Snake
20.

Which of the following animal can fight with snake

A. Monkey
B. Mongooes
C. Tiger
D. Lion
Answer» C. Tiger
21.

Which of the following is characteristics feature of mammal?

A. Mammary gland
B. Sweet gland
C. Four chambred heart
D. All of these
Answer» E.
22.

Dinosaurs are

A. Fossils of bird
B. Extinct reptiles
C. Unicillular animal
D. Gymnospermic plant
Answer» C. Unicillular animal
23.

A chemical substance secreted by particular species of animal to attract another member of same species is

A. Harmone
B. Nucleic acid
C. Pheromones
D. Steroid
Answer» D. Steroid
24.

The disease filaria is caused by

A. Ascaris
B. Wuchereria bancrofti
C. Pheromones
D. Steroid
Answer» C. Pheromones
25.

Pheretima posthuma is scientific name of which of the following

A. Leech
B. Neris
C. Earth worm
D. Tape worm
Answer» D. Tape worm
26.

Larva of house fly is called

A. Pupa
B. Imaga
C. Magote
D. None of these
Answer» D. None of these
27.

Respiration occurs in fishes through

A. Lung
B. Gills
C. Nostril
D. Scles
Answer» C. Nostril
28.

Pavo cristatus is the zoological name of

A. Tiger
B. Frog
C. Man
D. Peacock
Answer» E.
29.

Animal which is also known as 'Portuguese man of war' is

A. Physalia
B. Hydra
C. Aurelia
D. Obelia
Answer» B. Hydra
30.

The bones of birds are

A. Strong and solid
B. Soft and solid
C. Pneumatic and light
D. Calcarous and heavy
Answer» D. Calcarous and heavy
31.

Which one of the following is used as a gift in Japan

A. Euspongia
B. Euplectella
C. Hyalonema
D. Cliona
Answer» C. Hyalonema
32.

The person who is known as ornithologist

A. Dr. Salim Ali
B. Dr. J.C.Bose
C. Dr. Hergovind Khurana
D. Dr. M. S swaminathan
Answer» B. Dr. J.C.Bose
33.

Entamoeba histolytica is found in which part of man

A. Intestine
B. Throat
C. Stomach
D. Lung
Answer» B. Throat
34.

Corals are

A. Forest wood
B. Sea animals
C. Sea plant
D. None of these
Answer» C. Sea plant
35.

Malaria parasite and Amoeba are grouped under

A. Protozoa
B. Porifera
C. Coelenterata
D. Anilida
Answer» B. Porifera
36.

Which of the following primates is nearest to modern man ?

A. Gorilla
B. Cubon
C. Loris
D. None of these
Answer» B. Cubon
37.

Middle ear is not found in snake. They receive sound through

A. Tongue
B. Mouth
C. Skin
D. Leg
Answer» D. Leg
38.

National animal of India

A. Cow
B. Peacock
C. Tiger
D. Lion
Answer» D. Lion
39.

Enucleated RBC is found in

A. Reptile
B. Bird
C. Amphibia
D. Mammal
Answer» E.
40.

Water vascular system is found in

A. Porifera
B. Mollusca
C. Echinodermata
D. Coelenterata
Answer» D. Coelenterata
41.

Which of the following have no blood but they respire

A. Cockroach
B. Earthworm
C. Hydra
D. Kangaroo
Answer» D. Kangaroo
42.

Which among the following is the largest phylum in the animal kingdom in respect of number of species?

A. Annalida
B. Platyhelminthes
C. Chordata
D. Arthropoda
Answer» E.
43.

A large opening found at the top of Sycon is called

A. Ostia
B. Osculum
C. Redulla
D. Trachea
Answer» C. Redulla
44.

Star fish are named as

A. Asterias
B. Halothuria
C. Antedon
D. Sea urchin
Answer» B. Halothuria
45.

Characteristic feature of insect is

A. Two pair wing
B. Three pairs of jointed leg
C. Trachea
D. all of these
Answer» C. Trachea
46.

Cuttle fish is known as

A. Loligo
B. Sepia
C. Pila
D. Torpedo
Answer» C. Pila
47.

Which of the following is not useful for mankind

A. Honey bee
B. Earth worm
C. Tape worm
D. Silk worm
Answer» D. Silk worm
48.

Animal known as jelly fish is

A. Hydro
B. Physalia
C. Aurelia
D. Obelia
Answer» D. Obelia
49.

How many pair of leg is found in insect

A. One pair
B. Two pair
C. Three pair
D. Four pair
Answer» D. Four pair
50.

Which of the following is also known as green protozoa

A. Amoeba
B. Paramecium
C. Leshmania
D. Euglena
Answer» E.