MCQs-Diversity in the Living World-Class 6-Science

Multiple Choice Questions-Chapter 12 (Diversity in the Living World)-Class 6-Subject Science

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Multiple Choice Questions (MCQs):

What is biodiversity?
a) The study of plants only
b) The variety of living organisms in an environment
c) The science of grouping animals
d) The process of photosynthesis
Answer: b) The variety of living organisms in an environment
Which of the following is an example of a terrestrial habitat?
a) Ocean
b) Pond
c) Desert
d) River
Answer: c) Desert
Which of the following is an aquatic animal?
a) Lion
b) Elephant
c) Dolphin
d) Tiger
Answer: c) Dolphin
Which type of plant has a soft and green stem?
a) Trees
b) Shrubs
c) Herbs
d) Climbers
Answer: c) Herbs
Which of these is an example of a shrub?
a) Mango tree
b) Rose plant
c) Grass
d) Coconut tree
Answer: b) Rose plant
Which feature is used to classify plants into monocots and dicots?
a) Leaf color
b) Number of seeds
c) Leaf venation and root type
d) Size of the plant
Answer: c) Leaf venation and root type
Which of the following has parallel venation in its leaves?
a) Mango
b) Neem
c) Banana
d) Rose
Answer: c) Banana
What type of roots do plants with reticulate venation have?
a) Fibrous roots
b) Taproots
c) Aerial roots
d) No roots
Answer: b) Taproots
Which of these animals can live both on land and in water?
a) Crocodile
b) Elephant
c) Parrot
d) Dog
Answer: a) Crocodile
Which animal uses gills to breathe?
a) Frog
b) Dog
c) Fish
d) Snake
Answer: c) Fish
Which type of habitat do camels live in?
a) Mountains
b) Oceans
c) Deserts
d) Forests
Answer: c) Deserts
Which feature helps a fish to swim easily in water?
a) Legs
b) Wings
c) Streamlined body
d) Hard shell
Answer: c) Streamlined body
Which type of tree loses its leaves during autumn?
a) Evergreen tree
b) Deciduous tree
c) Shrub
d) Herb
Answer: b) Deciduous tree
Which of the following is an example of an amphibian?
a) Lizard
b) Frog
c) Eagle
d) Whale
Answer: b) Frog
What do plants provide to animals?
a) Shelter
b) Oxygen
c) Food
d) All of the above
Answer: d) All of the above
Which adaptation helps camels survive in the desert?
a) Thick fur
b) Long legs and fat-storing humps
c) Small ears
d) Short legs
Answer: b) Long legs and fat-storing humps
Which of these animals lives in a cold environment?
a) Penguin
b) Tiger
c) Camel
d) Elephant
Answer: a) Penguin
Which of these is a man-made change in biodiversity?
a) Deforestation
b) Natural disasters
c) Climate change
d) Evolution
Answer: a) Deforestation
Which animal has a long trunk to help it drink water and pick up food?
a) Giraffe
b) Elephant
c) Kangaroo
d) Lion
Answer: b) Elephant
Which type of tree is commonly found in mountain regions?
a) Cactus
b) Coconut
c) Pine
d) Mango
Answer: c) Pine

Additional MCQs:

Which of the following is a carnivorous plant?
a) Mango tree
b) Venus flytrap
c) Rose plant
d) Coconut tree
Answer: b) Venus flytrap
Which part of a cactus plant helps in photosynthesis?
a) Leaves
b) Stems
c) Roots
d) Flowers
Answer: b) Stems
Which of the following animals is a herbivore?
a) Lion
b) Tiger
c) Cow
d) Snake
Answer: c) Cow
Which feature helps penguins survive in extremely cold climates?
a) Long ears
b) Thick layer of fat (blubber)
c) Sharp claws
d) Dry skin
Answer: b) Thick layer of fat (blubber)
Which of the following animals has an exoskeleton?
a) Snake
b) Butterfly
c) Frog
d) Elephant
Answer: b) Butterfly
Why do trees in mountain regions have needle-like leaves?
a) To attract insects
b) To prevent excessive water loss
c) To grow taller
d) To absorb more sunlight
Answer: b) To prevent excessive water loss
Which of these animals lays eggs?
a) Whale
b) Dog
c) Snake
d) Bat
Answer: c) Snake
What kind of roots do mangrove trees have to help them survive in marshy areas?
a) Taproots
b) Aerial roots
c) Fibrous roots
d) Storage roots
Answer: b) Aerial roots
Which of the following birds cannot fly?
a) Crow
b) Pigeon
c) Ostrich
d) Sparrow
Answer: c) Ostrich
Why do desert animals come out mostly at night?
a) To avoid predators
b) To find more food
c) To escape the extreme heat of the day
d) To drink water
Answer: c) To escape the extreme heat of the day

True or False:

All plants have the same type of leaves. (False)
Birds have hollow bones that help them fly. (True)
A whale is a fish. (False, it is a mammal.)
Cactus plants store water in their stems. (True)
All animals have a backbone. (False)
Mango trees are evergreen trees. (False, they are seasonal.)
Fish breathe through gills. (True)
All plants produce flowers. (False)
Penguins live in hot deserts. (False)
Animals and plants depend on each other for survival. (True)

Match the Following:

Column A	Column B
Cactus	Lives in deserts
Fish	Breathes through gills
Frog	Amphibian
Rose	Example of a shrub
Neem	Example of a tree
Dolphin	Lives in water
Taproot	Found in dicots
Parallel venation	Found in monocots
Pine	Found in cold regions
Whale	Mammal that lives in water

Assertion and Reasoning Questions:

Assertion (A): Camels can survive for days without water.
Reason (R): Camels store fat in their humps, which provides energy and reduces water loss.
Answer: (Both A and R are true, and R explains A.)
Assertion (A): Cactus plants can grow in the desert.
Reason (R): Cactus plants have thick stems that store water and small leaves to reduce water loss.
Answer: (Both A and R are true, and R explains A.)
Assertion (A): Birds can fly because they have light bodies.
Reason (R): Birds have hollow bones that reduce weight and help them fly.
Answer: (Both A and R are true, and R explains A.)
Assertion (A): All animals need sunlight for survival.
Reason (R): Sunlight is necessary for photosynthesis, which produces oxygen and food for animals.
Answer: (A is false, but R is true.)
Assertion (A): Polar bears have white fur.
Reason (R): White fur helps polar bears blend with their snowy surroundings and stay camouflaged.
Answer: (Both A and R are true, and R explains A.)