Strategies For Enhancement In Food Production Question 324
Question: A pearl oyster secrets pearls to [MP PMT 1997]
Options:
A) Regenerate injured parts
B) Protect itself against invading parasite
C) Harden its mantle cavity
D) Isolate damaged tissues of the body
Show Answer
Answer:
Correct Answer: B
Solution:
The pearl is secreted by nacreous layer of pearl oyster as a protection against foreign body such as parasite or a sand particle.
BETA
