3
there are 3 layers to the animal and human eye: 1. External, which includes cornea and sclera 2. Intermediate, which has two parts a. Anterior, includes iris and ciliary body b. Posterior, includes choroid 3. Internal, which is the retina. Some nocturnal animals like cats for instance have a layer in the back of the eye that reflects/multiplies light coming into the eye, thus allowing them to see in the dark better. This layer is called the "Tapetum lucidum".
No and many people think the cornea is in the corner of your eye it is located in the center of your eye.
Cows cows cows.
Many studies were done but besides infections one of the dangers that involve long-term contact lenses wear was that it induces significant changes in all layers of the cornea.
you can have as many cows you can fit on your farm
Yes, There are many cows in Africa.
Well, isn't that just a happy little puzzle! Let's break it down nice and easy. If Fred has 15 cows, and John has twice as many cows as Fred had when Fred had as many cows as John has now, John must have 30 cows. So John has 30 cows in this peaceful little scenario.
Blue cows are in 17.
there are many layers
It's not about how many layers of clothes they wear, it's how the layer is made. In Antarctica, each layer of clothing is usually several other layers stitched together to keep as much heat heat as possible. It also depends on what material is used. During my year at South Pole Station, my outdoor clothing would be a parka, button-in liner, wool shirt, thermal underwear. The parka had a outer shell, insulating filler, inner shell - so that is 3 layers right there. The liner was also 3 layers. So there were usually 8 layers of material plus trapped air pockets between my skin and the very cold environment. It was about the same for the footwear.
A piece of coal typically consists of multiple layers called beds or seams. These layers are formed over millions of years from the accumulation of compressed plant material. The number of layers can vary depending on the specific geological conditions of the coal deposit.