How many days does is used for incubation of an egg to release chick? by Sunday | Sep 3 | Biology JAMB | 0 comments A. 21 B. 22 C. 20 D. 23 Correct Answer: Option A – 21 Users Also Read These:A radioactive element has a half life of 4 days. The…The part of the egg that prevents the yolk from…The weight of a day-old chick was measured to be…How many days are allowed in life insurance as days…A radioactive substance has a half-life of 20 days…