Question

Palmella stage is produced
A) In rainy season
B) During unfavourable conditions
C) During favourable conditions
D) None of the above

Answer 1

B) During unfavorable conditions

Answer 2

Palmella stage is produced during unfavourable conditions.  

Answer: Option B

Explanation:

This stage is found during the unfavourable condition of the Euglena. In unfavourable condition the zoospore is surrounded by the mucilaginous membrane which is called Palmella stage.

During the unfavourable condition the flagella became thrown out and then Euglenae came outside and embedded in a gelatinous structure on the water. After that Euglenae divided by the binary fission and each of the Euglanae can produce a single cyst.