ap biology lab 5 help

1) Non-invasive diagnostic techniques are those that can be applied without penetrating the skin. 2) X-rays have a remarkable ability to penetrate matter. They help to provide detailed images of dense parts of the body like bones. 3) The photographic image produced by x-radiation is calle..

The present trend in biology is to follow the five kingdom classification proposed by R.H.Whittaker in the year 196..

The present trend in biology is to follow the five kingdom classification proposed by R.H.Whittaker in the year 1969. Whittaker classified the living organisms into five kingdoms namely. 1. KINGDOM: MONERA (prokaryotic organisms) 2. KINGDOM: PROTISTA (primitive eukaryo..

="left">Milk, peas, beans, yeast, meat, egg, green leafy vegetables Keeps skin and mouth healthy. Helps in the normal functioning of eyes Vitamin B5(niacin) 16mg(boys) 14mg(girls) Meat, fish, fowl, potato, wholegrain, tomato, groundnut, green vegetables Maintains healthy skin, a..

These are malignant tumours occurring in middle aged and older people, that interfere with the blood - cell producing function of bone marrow and cause anaemi..

Any physical change in the routes of the migratory animals adversely affects them. They may fail to find way and reach their destination, and perish. Some dams block the migration of fish to spawning ground..

According to this theory, accumulated damage caused by oxygen radicals causes cells to stop functioning and eventually organs also stop functioning. An oxygen free radical is a by-product of normal metabolism produced when cells turn food and oxygen into energy. This free radical, in need of a mate..

Due to bioaccumulative characters, these pollutants pass through the food chain and food web. While passing through the organisms, the concentration of pollutants gets increased. This is called bio magnifications. For e.g., 0.5 ppm DDT in grasses gets magnified to 2ppm in sheep..

Biological Magnification - Certain harmful substances, usually ones not found in nature but introduced by man, may get into plants and/or animals. These poisonous substances may not be broken down in the body or excreted easily, efficiently and quickly. Instead, they accumulate in the tis..