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Vocabulary notes

(un)familiar to – (не)відомий, (не)знайомий

call attention to – привертати увагу до

from (someone’s) point of view – з (чиєїсь) точки зору

influence of something on something – вплив чогось на щось

III. Use the phrases from vocabulary notes in the sentences of your own

IV. Complete the following sentences using the information from the text

  1. It was only in the 20th century that …

  2. The word “ecology” originates …

  3. Cooperation between plant and animal ecologists started after …

  4. Mathematical basis for populations studies…

  5. V.C. Wynne-Edwards studied…

  6. The concept of trophic levels is concerned with…

  7. The idea of primary production…

  8. The development of new techniques facilitated…

  9. Any ecosystem includes…

  10. The population that has reached the limit in a certain ecosystem…

V. Answer the questions

  1. What kinds of ecological problems can you name?

  2. What is environment from the ecological point of view?

  3. How do you understand the definition of ecology as “the economy of nature”?

  4. In what directions did ecology develop in the first half of the 20th century?

  5. What is systems ecology?

  6. What are the main characteristics of an ecosystem?

  7. How do human activities influence the tendency of ecosystems to maturity?

VI. Look for the synonyms of the following words in the text “Ecology”

  1. create, invent;

  2. constitution, makeup;

  3. accentuate, stress;

  4. impulse, stimulus;

  5. keep up, sustain;

  6. full development;

  1. intervening, invading;

  2. delay, hold off;

  3. devolution, downgrade, weakening;

  4. disorder; sickness;

  5. competition, rivalry.

VII. Use the words and expressions from the previous exercise to fill in the gaps in the sentences below

  1. It is possible that the deletion is ________ upon an important part of the protein and altering the conformation of the complex.

  2. The report ________ the importance of improving safety standards.

  3. Eight years of ethnic ________ devastated the country.

  4. The discovery gave fresh ________ to the research.

  5. The word 'aromatherapy' was ________ in the 1920s.

  6. It is important to ________ a constant temperature inside the greenhouse.

  7. Several of today's football games have been ________ because of heavy snow.

  8. More recent studies have shown that hepatic denervation causes significant changes in the biliary lipid ________.

  9. Childhood ________ such as measles and chickenpox are highly contagious.

  10. The fur industry is already seeing a major ________ in sales.

  11. Sharks take 10 years to reach ________.

FOCUS ON GRAMMAR

I. Choose the appropriate word

As/ while/ during energy moves along/ through/ by the ecosystem, much of it is lost at some/ all/ each trophic level. For example, only near/ about/ along 10 percent of the energy stored in grass is incorporated into/ within/ inside the body of a mouse that eats the grass. The remaining 90 percent are/ is/ has stored in compounds that cannot be breaked/ broke/ broken down by the mouse or is lost like/ in the form/ as heat during the mouse's metabolic processes. Energy losses of similar magnitude occur on/ at/ in every level of the food chain; consequently, few/ a few/ little food chains extend behind/ above/ beyond five members (from producer through/ across/ to decomposer), because the energy available at higher trophic levels is to/ too/ two small to support further/ farther/ father consumers.

The flow of energy through the ecosystem drives the movement of nutrients inside/ within/ outside the ecosystem. Nutrients are chemical elements and compounds necessary to living organisms. Like/ not like/ unlike energy, which is continuously lost from the ecosystem, nutrients are cycled through the ecosystem, oscillating among/ between/ through the biotic and abiotic components in what/ which/ that are called biogeochemical cycles. Major biogeochemical cycles contain/ include/ involve the water cycle, carbon cycle, oxygen cycle, nitrogen cycle, phosphorus cycle, sulfur cycle, and calcium cycle. Decomposers play a key role in many of these cycles, returning nutrients to the soil, water, or air, where they can again be using/ useful/ used by the biotic constituents of the ecosystem.