No
Marek's Disease is a highly contagious viral disease among chickens. It is not transmittable to humans. Chickens with healthy immune systems can combat the virus and even though exposed, they do not have the disease themselves. So, YES, you can eat eggs from chickens who have been exposed to Marek's.
Yes, chickens lay unfertilized eggs.
They are from CHICKENS OR HENS because an egg can not produce another egg. (They are hens not chickens.)
What is the pronoun for the chickens lay lots of eggs
No, only female chickens lay eggs.
No, normal eggs are not unhatched chickens. Normal eggs are eggs that have not been fertilized and so are fit for consumption.
NO, they are only equipped to fertilize them.
Chickens are used for eggs. Farmers use the eggs to trade them and get money by selling them for cash.
White eggs come from white Chickens. Brown eggs come from brown chickens.
same as chickens! See chickens
Chickens reproduce sexually. Think of eggs.
Chickens are mostly used for their meat and their eggs.