During decomposition, the living material is broken down into

  • feces
  • gas
  • water
  • humus

A collection of multiple food chains is known as

  • food connection
  • food web
  • food tie
  • food cover

Fish have mucus on their overlapping scales to

  • prevent predators
  • slide through water
  • absorb oxygen
  • release carbon dioxide

Due to scarce supply of food, in winter animals

  • sleep
  • die
  • hibernate
  • migrate

The fur of 'moles' is

  • hard
  • spiky
  • smooth but sticky
  • short and velvety

Bears have strong legs so that they can

  • walk long distances in search of food
  • climb mountains
  • take down preys
  • swim easily

Humus can also be used by plants as a source of

  • oxygen gas
  • carbon dioxide gas
  • fertilizers
  • nitrogen gas

The shape of mole is

  • flat
  • streamlined
  • curved
  • bi-muscular

Fish have gills to absorb

  • water
  • carbon dioxide
  • aquatic plant waste
  • oxygen

The birds and animals that feed on dead decaying organisms are called

  • scavengers
  • primary producers
  • primary consumers
  • secondary consumers

A place where organisms can take shelter and reproduce is known as

  • ecosystem
  • habitat
  • community
  • both b and c

Plants can make their own food so they are called

  • primary consumers
  • secondary consumers
  • producers
  • heterotrophs

To find water, cactus plants have

  • thick roots
  • hairy roots
  • long roots
  • thick shoots

The body of a fish is

  • flat
  • streamlined
  • curved
  • bi-muscular

Animals which depend on primary consumers are known as

  • producers
  • primary consumers
  • secondary consumers
  • tertiary consumers

Polar bears have thick fur so that they can

  • camouflage
  • keep themselves warm
  • dry faster
  • stay alive and healthy

Herbivores are always

  • producers
  • primary consumers
  • secondary consumers
  • tertiary consumers

Swollen stem of cactus is important to

  • absorb more oxygen
  • absorb more carbon dioxide
  • absorb more water
  • absorb more sunlight

Animals that depend on producers are known as

  • producers
  • primary consumers
  • secondary consumers
  • tertiary consumers

Some predators prey at night like

  • bears
  • antelopes
  • owls
  • eagles
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