Page 73 - EVS Class 05
P. 73
Mushroom is a non-green plants. It does not
make food. It feeds on dead and decaying
matter.
A cactus plant does not have leaves. So, food
is prepared in its stem.
Insectivorous Plants Cactus
Some plants eat insects as their food. These are called insectivorous plants.
They are green plants which grow in soil that is poor in nitrogen.
To fulfill this nitrogen requirement, they trap and eat insects. Venus flytrap ,
sundew plant and pitcher plant are a few examples
of insectivorous plants.
Venus flytrap has jaw like leaf trap. Once, as insect
touches the hairs of the leaf, the jaw shuts in a
fraction of a second. At once, the plant secretes juices
which dissolves the insect. Venus Flytrap
Pitcher plant has leaves having the shape of a
pitcher. As an insect sits on the pitcher, its lid closes
and the insect drowns in the digestive fluid present in
the pitcher.
Pitcher Plant
Sundew plant have a gel-like substance at the tips of
the tentacles that cover the leaves. If an insect flies
too close to these, it get stucks to the plant and is
then digested.
Sundew
Food for Animals
All the animals including human beings depend directly or indirectly on
plants for their food. Therefore, they are called consumers or heterotrophs .
Animals can be classified into different groups on the basis of their food
habits.
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