Effects of eutrophication: 1  The algae covers the surface, it prevents the penetration of sunlight into the wter bodies. 2  The growth of aquatic animals inside the water body is affected. 3  The fishes are not able to get good oxygen hence they die. 4  Usually it takes a very long time for the water body to regenerate its initial state. 5  The movement of ...
12 people found this useful.   The color of bone cell, a connective tissue, is a yellowish, and blackish when stained. The osteocytes, blood vessels, and haversian canals are a black color while the h â¦ aversian lamellae, and canaliculi are a yellowish color.at has a yellow color, so the appearance of the material in the medullary cavity â¦ will get more yellow as a person ages, but the marrow itself is red. == Bones are usually filled with a whitish cream colored marrow.
Melanins, the pigments that color our eyes, hair and skin. Human beings come in a glorious spectrum of different colors: light, dark, plain or freckly skin; black, brunette, blond, auburn, and white hair; and eyes that are blue, hazel, green, amber and brown, to name just a few.or example, people in snow-covered areas often have a dark skin tone. This may be because they are exposed to high levels of reflected UV radiation from the snow, or because their diet with its high proportion of fish is rich in vitamin D. Grains in breads and cereals are often fortified with vitamin D.