Science for University Students. Part II. Translations. Сологуб Л.И. - 8 стр.

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2) We can conclude from the text that:
a. the forests travel because the bog surfaces grow drier
b. the forests become transitory because they respond to climate changes
c. the forests travel because soil conditions are conductive
d. the forests become transitory because they grow rapidly
III. Find in the text these pieces in English:
1. перемещающиеся хвойные леса
2. пни ископаемых сосен в торфняках
3. свидетельства об их присутствии
4. возвращаться на исходную позицию чуть южнее
5. движущая сила упадка и расцвета
6. скорость реакции – несколько сотен метров в год
7. идти наравне (не отставать)
IV. Translate the text into Russian
Text 3
Suspension Feeding
Suspension-feeding blackfish extract their food, tiny plankton, from large
volumes of water that they suck into their oral cavities. It had been thought that
cartilaginous structures on the gill arches of the oral cavity acted as mechanical
sieves to physically trap plankton particles. However, videos of the flow of fluid
inside the oral cavity, made by Sanderson et al., indicate that the blackfish gill-
arch structures are not sieves separating water and particles but are barriers that
alter the direction of flow of incoming materials. Particle-laden water was
directed by the arches to the mucuslined roof of the oral cavity (the palatal
organ) where large clumps formed as small particles were brought together by
mucus. Later, these clumps progressed down the esophagus. The measuring and
visualization devices used in these studies can be adapted for the study of
filtration strategies in other suspension-feeding fishes, bivalves, and birds.
Ruth Levy Guyer
I. Look through the text-summary for its main information
II. Choose the correct answer:
1) The main idea of the text may be formulated so:
a. suspension feeding black fish get their food from sea weeds
b. suspension feeding black fish extract their food from other large fish
c. suspension feeding blackfish extract their food from large volumes of water
d. suspension feeding blackfish get their food from people
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