Class 6 Science Chapter 6 MCQ The Living Organisms Characteristics and Habitats
MCQ on The Living Organisms Characteristics and Habitats Class 6
Multiple Choice Questions (1 Mark)
Select and write the most appropriate option out of the four options given
Question 1.
Which one of the following animals is present in all different locations like sea, mountains and deserts?
a) Yak
b) Ant
c) Camel
d) Fish
Answer:
b) Ant
Question 2.
An organism found in desert is ………….
a) Camel
b) Yak
c) Goat
d) All of these
Answer:
a) Camel
Question 3.
Ocean water contains. dissolved in it.
a) Minerals
b) Germs
c) Salts
d) Pebbles
Answer:
c) Salts
Question 4.
The surroundings where an organism lives is called as ………….
a) Habitat
b) Ecosystem
c) Atmosphere
d) Neighbourhood.
Answer:
a) Habitat
Question 5.
Which of the following is not an example of terrestrial habitat?
a) Desert
b) Grassland
c) Mountain
d) River
Answer:
d) River
Question 6.
A characteristic feature of camels that help them to keep their bodies away from heat of the sand in a desert is ………….
a) long legs
b) hair on their body
c) hard calciferous toes
d) none of these
Answer:
c) hard calciferous toes
Question 7.
Select the incorrect pair.
a) Cactus-Desert
b) Deer-Grassland
c) Water lily-Sea
d) Froo-Pond
Answer:
c) Water lily-Sea
Question 8.
Presence of special features that help an organism to live in its surroundings is …………..
a) acclimatisation
b) adaptation
c) habituation
d) both (a) and (b)
Answer:
b) adaptation
Question 9.
Select the option that contains abiotic components only.
a) Plants and animals
b) Air and microorganisms
c) Bacteria and fungi
d) Water and soil
Answer:
d) Water and soil
Question 10.
Mountain regions are normally
a) Cold and windy
b) Hot and dry
c) Warm and humid
d) Cold and dry
Answer:
a) Cold and windy
Question 11.
Leaves of cactus plant are modified into spines. This helps the plant to ………….
a) synthesise food without using water
b) increase the rate of transpiration
c) reduce the loss of water through transpiration
d) survive in aquatic habitats
Answer:
c) reduce the loss of water through transpiration
Question 12.
Select the feature that is a characteristic of plants found in mountain regions
a) Trees are cone-shaped with sloping branches
b) Leaves are broad and flat.
c) Stem is thick, fleshy, green and photosynthetic.
d) Roots are much reduced in size.
Answer:
a) Trees are cone-shaped with sloping branches
Question 13.
Blow holes are present in
a) whales
b) octopus
c) crabs
d) frogs
Answer:
a) whales
Question 14.
Select the correct match of animal and its adaptive feature.
a) Snow leopard – Large ears
b) Deer – Eyes on the front of the head
c) Mountain goat – Strong hooves
d) Dolphin – Presence of gills
Answer:
c) Mountain goat – Strong hooves
Question 15.
Animals that can live in both terrestrial and aquatic habitats are
a) frogs
b) whales
c) rats
d) deer
Answer:
a) frogs
Question 16.
Respiration is essential for all living organisms because it
a) removes waste material from the body
b) helps them to produce new organisms of their own kind
c) provides them energy to carry out various life processes
d) helps to synthesise food
Answer:
c) provides them energy to carry out various life processes
Question 17.
The eye-like structure in potato which can give rise to a new plant is known as
a) bud
b) cone
c) bulb
d) tuber
Answer:
a) bud
Question 18.
…………….. of plants can grow into new plants, after germination.
a) Leaves
b) Stem
c) Seeds
d) All of these
Answer:
c) Seeds
Question 19.
Which of these is not a characteristic of living beings?
a) Movement
b) Produce young ones
c) Respiration
d) None of these
Answer:
d) None of these
Question 20.
Which of the following is not an example of response to stimulus?
a) A child growing up to an adult
b) Stem of a plant growing towards sunlight
c) Withdrawing of hands on touching a hot vessel
d) Running away of animals on flashing light
Answer:
c) Withdrawing of hands on touching a hot vessel
Question 21.
Read the following statement.
i) Any change in an organism and environment that causes the organism to react is called as ……………..
ii) …………….. is how the organism reacts to a stimulus and results in a change in behaviour.
Select the correct option for (i) and (ii).
(i) — (ii)
a) Acclimatisation — Adaptation
b) Adaptation Response
c) Stimulus Response
d) Stimulus Adaptation
Answer:
c) Stimulus Response
Question 22.
Which of the following is not a characteristic feature of camels?
a) Have long legs
b) Have hooves on its feet
c) Have dry skin
d) Perspire less
Answer:
d) Perspire less
Question 23.
Read the given paragraph.
The stem of a plant normally grows away from the Earth. Hence is called X whereas roots of a normally grow towards the Earth hence are called Y. Select the option that correctly fills X and Y.
x — y
a) Negatively:phototropic — Positively phototropic
b) Negatively geotropic — Positively geotropic
c) Positively geotropic — Negatively geotropic
d) Positively phototropic — Negatively phototropic
Answer:
b) Negatively geotropic — Positively geotropic
Question 24.
Select the correct statement(s) about adaptive features of Hydrilla
i) Do not have roots
ii) Flowers and leaves remain floated above water
iii) Roots fixed to soil under water
iv) Whole plant submerged underwater
a) Only (ii)
b) Only (i)
c) Only (iv)
d) Only (iv)
Answer:
c) Only (iv)
Question 25.
Which of the following statements are incorrect ?
i) Predator is an animal that feeds on its prey
ii) Plants living in water are called xerophytes
iii) Sufficient plants have freshy sterns
iv) Aquatic plants have long roots to hold the plants in place
a) (ii) and (iv)
b) (i) and (iv)
c) (i) and (ii)
d) (iii) and (iv)
Answer:
a) (ii) and (iv)
Question 26.
Select the incorrect statement
a) Stomata are mainly present on the leaves
b) Carbon dioxide is released during respiration.
c) Growth in living organisms occurs by addition of materials from outside
d) All living and non-living things are made up of matter
Answer:
c) Growth in living organisms occurs by addition of materials from outside
Question 27.
Which of the following is not due to adaptation?
a) Blooming of some flowers at night
b) Long neck of giraffe
c) Streamlined body of fish
d) Cone-shaped trees in mountains
Answer:
a) Blooming of some flowers at night
Fill in the blanks :
1. …………. shape of fish helps them to move inside water.
Answer: Streamlined
2. …………. protect fish in water.
Answer: Scales
3. Organisms in sea are surrounded by …………. water.
Answer: saline
4. Rivers, seas, oceans are examples of …………. habitat.
Answer: aquatic
5. Organisms depend on their …………. for food, water and other needs.
Answer: habitat
6. Plants and animals living in a habitat make its …………. component.
Answer: biotic
7. The habitats of plants and animals that live in water are called …………. habitat.
Answer: aquatic
8. When a seed turns into a sprout, it is said to be ………….
Answer: germinated
9. Camels excrete …………. amount of urine.
Answer: less
10. Yaks living in mountain regions have …………. to keep them warm.
Answer: long hair
11. Animals that hunt and make other animals their prey are called ………….
Answer: predators
12. Octopus have …………. to use the dissolved oxygen in water.
Answer: gills
13. The trees of mountain regions are generally …………. shaped.
Answer: cone
14. The leaves of desert plants are either absent or present as ………….
Answer: spines
15. Squids make …………. body shape that help them during swimming in water.
Answer: streamlined
16. In animals like lions, eyes are present in …………. of the face.
Answer: front
17. Desert plants loose very little amount of water through ………….
Answer: transpiration
18. …………. is the process of getting rid of waste from the body.
Answer: Excretion
19. Reproduction in potato can take place through ………….
Answer: bud
20. Changes in our surroundings which make us to respond them are called ………….
Answer: stimali
21. …………. is the process which gives energy from the food that we eat.
Answer: Respiration
22. Plants respire through …………. present on their leaves.
Answer: pores
23. …………. in plants take place in both day and night.
Answer: Respiration
24. The rock like structures made from skeletons of small ocean animals are called …………..
Answer: coral reefs
25. Green tree frog and stick insect exhibit ………….
Answer: camouilage
26. Animals that lay eggs are called ………….
Answer: oviparous
27. The roots of some terrestrial plants grow doop into the oarth in search of ………….
Answer: water
True (or) False :
1. Different places have living creatures of different kinds.
Answer: True
2. We can find living creatures in all the places but not in the openings of volcanoes.
Answer: False
3. Deodar trees are mostly seen growing in humid climates.
Answer: False
4. Pines are the type of trees found in deserts.
Answer: False
5. Camels sweat a lot to keep their body temperature low in the hot climate of desert.
Answer: False
6. Sea plants and animals use the oxygen dissolved in water for respiration.
Answer: True
7. Several types of plants and animals may share a common habitat.
Answer: True
8. Flat fins of fish provide protection from its predator.
Answer: False
9. Adaptation takes place in a very short time.
Answer: False
10. Gills help fish to use oxygen dissolved in water.
Answer: True
11. Only biotic components of any habitat is required for the growth of organisms living in it.
Answer: False
12. In aquatic plants, roots are larger in size.
Answer: False
13. Octopus and dolphins do not have gills.
Answer: False
14. The eyes of deer allows it to look in all directions for any coming danger.
Answer: True
15. Plants make their food only in the daytime.
Answer: True
16. All living things respond to the changes taking place around them.
Answer: True
17. Flowers of all plants bloom only at night.
Answer: False
18. Lions and tigers have eyes in the sides of their heads.
Answer: False
19. Hump of a camel stores fat.
Answer: True
20. Stems of desert plants are covered with waxy layer.
Answer: True
Analogy Questions :
Question 1.
…………. : Mountain regions :: Deer: Grasslands
a) Snow leopard
b) Camel
c) Lion
d) Tiger
Answer:
a) Snow leopard
Question 2.
…………. : Eggs :: Cat: Young ones
a) Pig
b) Crocodile
c) Cow
d) Buffalo
Answer:
b) Crocodile
Question 3.
…………. : Desert :: Water lily : Pond
a) Scorpion
b) Octopus
c) Crocodile
d) Hydrilla
Answer:
a) Scorpion
Assertion & Reason :
Directions : In each of the following questions, a statement of assertion is given and a corresponding statement of reason is given just below it. Out of the statements, given below, mark the correct statement as
A. Both Assertion and Reason are true, and the Reason is the correct explanation of the Assertion.
B. Both Assertion and Reason are true, and the Reason is not correct explanation of the Assertion.
C. Assertion is true but Reason is false.
D. Assertion is false but Reason is true.
Question 1.
Assertion : An ability of an organism to adjust to its environment is called adaptation.
Reason : Acclimatisation is when an organism adjusts to a gradual change in its environment.
Answer:
B. Both Assertion and Reason are true, and the Reason is not correct explanation of the Assertion.
Question 2.
Assertion : Living things produce more of their own kind through reproduction.
Reason : Only animals reproduce their own kind plants cannot reproduce.
Answer:
C. Assertion is true but Reason is false.
Question 3.
Assertion : Respiration is necessary for animals.
Reason : Fish used their gills to absorb oxygen from the air dissolved in H2O
Answer:
D. Assertion is false but Reason is true.
Question 4.
Assertion : The plants and animals that live on land are said to live in terrestrial habitat.
Reason : Ponds, rivers, lakes, etc., are examples of terrestrial habitats.
Answer:
C. Assertion is true but Reason is false.
Question 5.
Assertion : Some biotic factors like air, water, light and heat are very important for growth of plants.
Reason : Some of the above abiotic factors are important for all living organisms.
Answer:
B. Both Assertion and Reason are true, and the Reason is not correct explanation of the Assertion.