The Living Organisms and Their Surroundings
QUESTION1.
Animals and plants have certain features which make them to survive in a
particular habitat. This is called
(a)
adaptation
(b)
speciation
(c)
specialisation
(d)
evolution
Answer: (a) adaptation
QUESTION2.
Which is a biotic component of environment?
(a) Plants
(b) Animals
(c)
Microorganisms
(d) All of
these
Answer:
(d) All of these
QUESTION3.
Respiration in aquatic animals occurs by
(a) lungs
(b) gills
(c) nostrils
(d) legs
Answer:
(b) gills
QUESTION4.
Which is an aquatic adaptation?
(a)
Streamlined body
(b) Light
and hollow bones
(c) Hair on
body
(d) Gills
Answer: (a)
Streamlined body
QUESTION5.
Which one of these animals can live on land as well as in water?
(a) Deer
(b) Giraffe
(c) Frog
(d) Fox
Answer: (c) Frog
QUESTION6.
Why do desert plants have thorns rather than broad leaves?
In deserts as the amount of rainfall is less
so the plants develop thorns instead of leaves as there are no pores in thorns
and are hard in nature which makes it possible for the survival of plants in
the deserts.
QUESTION7.
Name some plants which live in dry areas.
Answer:
Plants like cactus, seesam, etc., live in dry areas.
QUESTION8.
Mention a few aquatic plants found in a pond.
Answer: Water lily, lotus, etc.
QUESTION9.
What is habitat?
Answer: The surrounding where organisms survive, flourish and
reproduce is called a habitat.
QUESTION10.
Name various types of habitat.
Ans:
(i)
Terrestrial Habitats
(ii) Aquatic
Habitats
(iii) Aerial
Habitat
QUESTION11.
What are aquatic habitats?
Answer: Habitats of plants and animals that live in water are called
aquatic habitat.
QUESTION12.
What are terrestrial habitats? Give examples.
Answer: The plants and animals that live on land are said to five in
terrestrial habitats.
For example,
forests, grasslands, deserts, coastal and mountain region.
QUESTION13.
What are biotic components?
Answer: The living things such as plants and animals in a habitat are
its biotic components.
QUESTION14.
Explain abiotic components.
Answer:
Various
non-living things such as rocks, soil, air and water in a habitat constitute
its abiotic components.
QUESTION15.
Name the types of components of habitat.
Answer: Components of habitat are:
(i) Biotic
components
(ii) Abiotic
components
QUESTION16.
The place where organisms live is called …………… .
habitat
QUESTION17.
The plants and animals that live in water, it is called ……………. habitat.
aquatic
QUESTION18.
Plants and animals that live on land, it is called …………….. habitat.
terrestrial
QUESTION19.
……………………… is a medium in aquatic habitat.
Water
QUESTION20.
The process of respiration involves ……………….. gases.
exchange
