CBSE Class 6 Science - Living Organisms and their Surroundings Learning the important concepts is very important for every student to get better marks in examinations. The concepts should be clear which will help in faster learning. The attached concepts made as per NCERT and CBSE pattern will help the student to understand the chapter and score better marks in the examinations.
Living organisms and their Surroundings
Q1. Define habitat, adaptation, xerophytes and hydrophytes.
Ans. The definitions are as follows:-
a) Habitat- Habitat is the place where an organism lives.
b) Adaptation- Adaptation refers to the presence of specific features or certain habits which enable a plant or animal to live in its surroundings.
c) Xerophytes-Plants which live in dry conditions
d) Hydrophytes-Plants which live in water.
Q2. Leaves of pine tree are needle- like. Why?
Ans. Leaves of pine tree are needle like because this helps the rain water and snow to slide off easily.
Q3. Stem in desert plants is coloured with a thick waxy layer. Why?
Ans. Stem in desert plants is covered with a thin waxy layer so as to reduce the loss of water.
Q4. Classify the following as biotic and abiotic components.
Ans. a) Bacteria- Biotic
b) Humidity- Abiotic
c) Light- Abiotic
f) Dog- Biotic
g) Polar Bear- Biotic
h) Air- Abiotic
d) Precipitation- Abiotic
e) Soil- Abiotic
i) Temperature- Abiotic
j) Water- Abiotic
Q5. Why frogs are called amphibians of animal kingdom?
Ans. Frogs are called amphibians of animal kingdom because they live both in water as well as on land.
Q6. Why rats and snakes stay in deep burrows in land?
Ans. Rats and snakes stay in deep burrows in land so as to stay away from heat.
Q7. Mention two ways in which animals cope up with low temperature?
Ans. The two ways in which animals cope up with low temperature are:
- Thick skin or fur to protect them from cold.
- Yaks have long hair to keep them warm.
Q8. Mention two stimuli that plants respond to.
Ans. The two stimuli are:
- Stem grows towards light.
- Some plants like touch me not close their leaves when we touch it.
Q9. Select the animals which can live in water as well as on land:-
Ans. a) Frog- Yes
b) Duck- No
c) Crocodile- No
d) Human fish- No
e) Monkey- No
Q10. Why lions have eyes in front of their face?
Ans. Lions have eyes in front of their face because this allows it to have a correct idea about the location of its prey.
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