Assertion : Euglena is studied as an animal as well as a plant.
Reason : Euglena is more an animal than a plant.

Options

A. If both the assertion and the reason ate true but the reason is not correct explanation of the assertion
B. If both the assertion and the reason ate true and the reason is a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

B

Explanation

Euglena is a typical example of mastigophora. It is phytoflagellate as it possesses both chloroplast and flagella. It is autotrophic in sunlight, becomes heterotrophic in dark. Because of its two fold nutritional abilities, it is usually studied as a plant as well as an animal. But it is more an animal than plant because of
(a) The absence of cellulose cell wall overlying the plasma membrane.
(b) Presence of centriole forming blepharoplasts.
(c) Reserve food is paramylon which is not a true starch.
(d) Response to various stimuli like an animal.