Http://www.flashcardmachine.com/nutrition-exam33.html
This I think definitely will help :)
The correct answer is option B
Sperm cells when pollinated by the insect to the female body part stay there for a while til the part of the flower determines its suitability and once it is done the sperm travels down through the pollen tube.
You would find scales on a bird is it feet
B. Half of the total genetic information