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Warm up

Within all species, individuals interact with each other - feeding together, mating together, and living together.

However, it is not only individuals within a species that interact. Different species of animals interact with each other all the time. For instance, animals eat other animals through their interactions in a food web. But plants are included in this web as well as they, too, are eaten by animals.

Besides, all living things interact with abiotic part of the biosphere. A group of living things which live in one environment and interact with each other is called an ecosystem. Coral reefs are an example of a marine ecosystem.

-What other ecosystems do you know?

-What would happen if the weather were really cold all the time?

Vocabulary

  1. mammal млекопитающее

  2. affectвоздействовать, поражать

  3. refer(to) объяснять; относиться

  4. alongwithвместе

  5. webсплетение; сеть

  6. nutrient cycle пищевой цикл

  7. disruptive разрушительный

  8. gentleлёгкий, слабый

  9. reboundреакция

  10. resiliencyспособность быстро

восстанавливать силы

  1. governуправлять

  2. responseответ; реагировать

  3. provokeвызывать, провоцировать

  4. merelyтолько, просто

  5. dispersalрассредоточение

  6. fluctuateколебаться

  7. stimulus(stimuli) стимул, раздражитель

  8. diversityразнообразие

  9. move in вводить

  10. gradually постепенно, понемногу

  11. feedbackответная реакция

  12. notably исключительно, весьма

  13. frameworkструктура, рамки

  14. persist устоять, сохраняться

Word Study

1. Give the Russian equivalents to the following words:

stable, permanent, temporary, central, dynamics, isolated, collapse, toxicity, original, stochastic, reaction, reproductive, variation, mechanism, regulate, examine, niche, conceptual, uniquely, biogeographical, aquatic, terrestrial, categorize, alpine, agent

2. Guess the meaning of the underlined words. Translate the sentences.

1) Plants, animals, and microbesplay importantrolein purifying water.2) All species depend on air, water, andnutritive elementsfrom the earth’sminerals. 3) Thefunctionalunit in ecology is the ecosystem. 4) Water on land can be either surface runoff orfilterthrough soil to becomegroundwater. 5) Differentareasofoceansreefs,continental shelves– may be studied asseparateecosystems. 6) Theindustrialworldeconomyhas caused present-daytransformationof the environment.7) There have been severalnaturalmassextinctions in thehistoryof earth followed by recovery.

3. Translate the following word combinations:

depend on each other; in some way; physical (abiotic) factors of the environment; within the same habitat; food webs; a given area; linked together through nutrient cycle; with every other element; a relatively isolated ecosystem; a disruptive effect; a gentle rebound; the great diversity; feedback mechanisms; ecology of organisms; the most widely accepted definition; stable population sizes; a measurable property of an organism; an aquatic or terrestrial environment

4. Match the word from list A with its definition in list B.

A

B

  1. mammal

  2. affect

  3. `web

  1. rebound

  2. response

  1. fluctuate

  2. framework

  3. persist

    1. any of the class of animals which feed their young with milk from the breast

    2. that part of a structure that gives shape and support

    3. continue to exist

    4. quality or property of quickly recovering the original shape or condition

    5. reaction

    6. move up and down; be irregular

    7. network

    8. have an influence or impression on

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