Biological Classification And System Of Classification Question 221
Assertion : Euglena is studied as a protist as well as an animal. Reason : Euglena is more of a protist than an animal.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not 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
Show Answer
Answer:
Correct Answer: B
Solution:
Euglena is a typical example of mastigophora.
It is phytoflagellate as it possesses both chloroplasts and flagella.
It is autotrophic in sunlight, but becomes heterotrophic in darkness.
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 the absence of cellulose cell wall overlying the plasma membrane.
Presence of centriole forming blepharoplasts.
Reserve food is paramylon which is not a true starch.
Response to various stimuli, like an animal.
BETA
