Animal Kingdom Question 447
Question: Phaosome in Earthworm is [APMEE 2002]
Options:
A) Lens
B) Pigment
C) Nephridium
D) Hormone
Show Answer
Answer:
Correct Answer: A
Solution:
Each photoreceptor cell of earthworm has a nucleus and the cytoplasm contains an optic organelle or L - shaped lens or phaosome made up of a hyaline substance.