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Exercises

1. Answer the questions:

  1. What types of animal communication are mentioned in the text?

  2. Do animals always have several types of communication?

  3. Do all animals emit pheromones?

  4. Are all pheromones of simple chemical structures?

  5. What is meant by mechanical communication?

  6. Do all animals use sounds for communication?

  7. What has led to appearing of decorations in animals?

  8. What is the process of imprinting?

  9. What are the characteristics of imprinting?

  10. How does a young bird know which noises to pay attention to?

2. Complete the sentences based on the text:

  1. Among the animals, nearly all use… to one level or another.

  2. …use pheromones with complex chemical structure.

  3. Web vibrations are used to…

  4. …communication is accomplished as vibrations through air.

  5. Competition among males has led to… to attract females.

  6. Bright feathers make birds more…

  7. Most birds need exposure to the adult song during a critical period in order to…

  8. Birds stake out their territories by…

  9. Another example of restricted learning is…

3. Give definitions of the following:

pheromones, mechanical communication, visual communication, imprinting.

4. Give 2-3 sentences that develop from the leading statement using such introductory phrases as:

I hope you remember that…

As you all know…

You might know that…

You probably know that…

It is a well-known fact that…

There is no doubt that…

The point is that…

As it was mentioned before…

  1. Pheromone emitting is especially important during mating season.

  2. Communication through vibration may be of the two types.

  3. It is possible for many animals to use a new channel for communication because of good vision.

  4. Sexual selection is driven entirely by female preferences.

  5. Imprinting can be observed in the behaviour of almost every animal.

Unit 6 Evolution Word Study

1. Learn the meaning of the words:

tremendous

огромный, громадный

to branch off

ответвляться

ancestor

предок

lineage

родословная, происхождение

diverge

расходиться

to attempt

пытаться

burgeoning

разрастающийся

to propose

предлагать

to convince

убеждать

to evade

избегать

ravage

разорение, опустошение

blasphemous

кощунственный

to acclaim

восхвалять

to alter

изменяться

clue

путеводная нить, след

extinction

вымирание

exquisitely

прекрасно

prominent

выдающийся

2. Translate the word combinations and use them in sentences of your own:

ever-changing variety of life

a predominant view

over the course of time

a competitive struggle to survive

an essential framework

to evade the ravages of predators

the ongoing history of life

blasphemous ideas

to share a common ancestor

cornerstone of modern biology