Capillaries are where fluids, gasses, nutrients, and wastes are exchanged between the blood and body tissues by diffusion. Capillary walls contain small pores that allow certain substances to pass into and out of the blood vessel.apillaries measure in size from about 5-10 microns in diameter. Capillary walls are thin and are composed of endothelium (a type of simple squamous epithelial tissue). Oxygen, carbon dioxide, nutrients and wastes are exchanged through the thin walls of the capillaries.
Quick Answer. Cottontail rabbits are herbivorous animals that will eat nearly any plant or vegetable that they can get. They do not prefer any type of plant compared to others; but they will tend to eat more of certain things, such as grass or bark, depending on the season that it is. Continue Reading.
Eastern cottontail rabbits start breeding at around 1 year of age and can have five litters of three to five babies per litter each year. The mother makes a nest and leaves the babies in the nest, visiting only once a day to feed them. Domestic rabbit breeders usually start breeding does when they are only 4 months old. A domestic doe can produce seven to eight litters per year of eight to 10 babies.