Answer:
The small intestine contains small fingers-like projection of tissue called villi increase the surface area of the intestine and contain specialized cells that transport substances into the bloodstream.
Explanation:
The part of the digestive tract that contains villi is the small intestine.
correct order:
1
2
4
3
the first one
Fertillization is the process of fertillizing an egg, female animal or plant involving the fusion of male and female gametes to form a zygote