What is the process of egg formation in birds?
Formation of the yolk
Ovulation
Formation of the egg in the oviduct
Fertilization
Formation of the shell
The formation of the egg involves both the ovary and the oviduct
The composition of the yolk is an emulsion of water, lipoproteins, proteins, minerals, and pigments
The ovulation is the release of the ovum from the follicle where it is included
The fertilization occurs in the infundibulum when the yolk is only covered by the internal vitelline membrane
The formation of the shell occurs in the uterus and involves the deposition of calcium carbonate crystals and pigments
a) 1, 2, 3, 4, 5
b) 2, 1, 4, 3, 5
c) 3, 1, 2, 5, 4
d) 2, 3, 1, 4, 5
e) 1, 3, 2, 4, 5