Tenses in Passive Voice

1. Translate the following sentences:

1. Probably all nations and tribes have given names to plants, each in its own language. Such terms are learned in childhood and handed from generation to generation.

2. The regulation of division of mammalian cells in tissue culture is effected by a complex balance of signals reaching the cell surface.

3. The changes in the skin temperature of the newborn is a phenomenon of the same type which is effected also by external temperature and humidity.

4. Changes in the skin temperature curve of the newborn in the immediate postnatal period were followed in an earlier study.

5. In certain trypanosomes, the blood phase is produced by invasion of microphages or their cells in the skin at the site of the bite and is followed by still another type of existence, after entry into the muscle cell of the heart.

6. Systematic botany should be preceded by a course in general botany, without which the student will fail to grasp the fundamental principles of phylogenetic taxonomy and will find that the examples used are mostly unfamiliar and meaningless.

7. When the diffusion takes place through a membrane, the process is known as osmosis. By this process, the water from the earth diffuses through the walls of the cells in the root hairs. The intake of water is aided further by process of transpiration in the leaves.

8. The great bulk of the cases of mimicry remained unnoticed, and the subject was looked upon as one of the inexplicable curiosities of nature, till Mr. Bates studied the phenomenon among the butterflies of the Amazon, and, on his return home, gave the first rational explanation of it.

9. Conditions which are comparable to these in the temporary ponds just described are met with in some habitats of bilharzias snails in East Africa. In certain places a pool which contains water perennially is surrounded by an area which is flooded each rainy season.

10. Frequent mention is made by travelers in Southern Asia and the adjacent islands of a little fish called the Archer fish. It swims at the surface of the water and catches the insects on which it feeds by shooting a spray of water at them as they sit on the overhanging leaves or grass.It is wonderfully accurate up to a distance of two feet.

2. Translate from English into Russian:

1. На его предупреждение не обратили внимание.

2. Им предложили просмотреть материалы конференции еще раз.

3. Для продолжения работы вам необходимо ознакомиться с новейшими разработками в области генетики.

4. Этого студента ожидают в деканате.

5. На их вопрос только что ответили.

6. За этим изобретением последуют другие.

7. Лектора сейчас попросят ответить на вопросы.

8. Подождите минутку, вам сейчас ответят.

9. Таким образом, все живые существа могут быть разделены на несколько больших групп.

10. Все приготовления к экспедиции необходимо закончить на этой неделе.