Which of the following organisms shows both autotrophic as well as heterotrophic mode of nutrition?
a) Diatom
b) Gonyaulax
c) Euglena
d) Slime mould
Answers
Answer:
The pitcher plant has both autotrophic and heterotrophic modes of nutrition.
Euglena is the name of an organism who has chloroplasts, it also has a protein-rich layer called pellicle, and can make their own food by performing photosynthesis. Hence we can consider them as autotrophs, But euglena can also absorb food from their environment, that"s why they are not fully autotrophs, because heterotrophic nutrition also occurs in them.
So the correct option is
c) Euglena
a) Diatoms are a large group of algae, found mostly in freshwater. They can not make their food own,
b)Gonyaulax is a genus of dinoflagellates and commonly causes red tides. They are not autotrophs.
d)Slime moulds exist in plasmodium which has a mass of amoeba-like protoplasm. So autotrophic nutrition is absent here.