Answer the following questions in
your own words.
(a) Why do living organisms need
nutrition?
(b) Explain the process of production of
food in plants.
(c) What is meant by parasitic plants?
Name their different types with
examples of each.
(d) Explain the various steps of nutrition
in animals.
(e) Name some unicellular organisms
in which all life-processes take
place within their unicellular body.
Answers
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Answer:
a) nutrients give energy to work and survive .
b)plants make food in their leaves as leaves have green pigment called chlorophyll . these chlorophyll make food with the help of sunlight,water,nutrients and carbon dioxide and this process is called photosynthesis.
c)parasite plants are plants that obtains all its nutrition from another plant.
example: viscum album,stinking corpse lily.
d)steps of nutrition in animals are ingestion ,digestion,absorption, assimilation and egestion.
e) algae,fungi.
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