Page 96 - Science Class 06

1. Write the func ons of beaks.
Some birds do not use their wings to fly.
The family of such birds consists of 2. What are the important features of birds
that help them to fly?
ostrich, rheas and kiwis.
3. How do the birds feed?

Biotic Components : All the living beings present in the environment
Abiotic Components : All the non-living things present in the environment
Habitat : A suitable condition for proper growth and reproduction of
living beings

Hydrophytes : Plants that grow in aquatic environment
Mesophytes : Plants that grow on land having normal rainfall
Xerophytes : Plants that grow in deserts

Halophytes : Plants that grow in soil or water of high salinity
Aquatic habitat : Fresh as well as marine water bodies
Terrestrial : Habitats which are found on land having normal rainfall

Desert habitat : Habitat that exits in deserts
Aerial habitat : Habitat meant for birds
Transpiration : Loss of water from the body of living beings through the process of
evaporation

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i All the things present in the environment can be grouped into biotic and abiotic components.
i All the biotic components interact with each other and with the abiotic components.
i There are mainly three types of habitats—aquatic, terrestrial and desert habitat.
i Adaptation is the process through which living beings live in tunes with the requirements of
their local environment.
i Free floating water plants remain in contact with air and water, but not with soil.

i Hydrilla plants remain in contact with water only.
i Terrestrial plants store water well in their developed roots.

i The stem of desert plants have water storage tissues.
i Gills are found in fish, tadpole of frog, octopus and prawn.
i Camel can store water in its body for several days.

i Camels have padded feet which help them to walk on the desert land.
i Hollow bones of birds are filled with air which help them in flying.

96 Science-6