State the functions of Participle II. Translate the sentences into Russian

1. Skeletal problems are seen in cats fed diets composed primarily of liver.

2. Canned foods can cost up to 8 to 10 as much as dry food when compared on a nutritional basis.

3. Maize is an excellent food for animals if given in combination with other foods containing the essential constituents that maize lacks.

4. Animals can live for a considerable time without taking solid food, but soon suffer in health if kept short of water or if supplied with water in a spasmodic manner.

5. Every different cell type has a characteristic appearance when viewed under the microscope.

6. A bird's skin is covered by feathers developed from scales.

7. If incubated for 36 days, this egg will hatch into a chick.

8. The sounds made by the cats have various meanings.

9. Strychnine, powdered over small pieces of carrots or fruit and placed in the burrows is the usual and the most effective method for destruction of rabbits in Australia.

10. The brain in its simplest form in lowly vertebrate animals is a thickened part at the front end of the spinal cord, developed to govern the organs of smell, hearing and taste.

4.18 Underline the correct participle.

Example: The horns of antelopes and the antlers of deer are obvious examples of weapons possessed by mammals.

1. Horns, usually (possessed/possessing) by both sexes, are permanent features which continue to grow throughout the animal's life. They consist of bony processes (jutted/jutting) out from the skull covered/covering with a hard substance (known/knowing) as keratin, which is tougher than bone.

2. (Covered/covering) with thick plates the armadillos can roll themselves into a ball so that their soft parts are inaccessible even to the most persistent predators. Others ward off attacks (pressed/pressing) themselves flat on the ground beneath the arch of rigid plates (covered/covering) their backs.

3. Almost every cell (known/knowing) to man is microscopic in size, that is, cells cannot be observed with the (unaided/ unaiding) eye.

4. The plasma membrane, sometimes (referred/referring) to as the cell membrane, is located at the surface of the cytoplasmic portion of the cell.

5. The lysosome, (discovered/discovering) in the mid-1950's, is a spherical, saclike body (contained/containing) a number of hydrolytic enzymes.