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IV. Suggest the English for:
другими словами; обработать таким образом; морфологические изменения;
в соответствии с …; на любой стадии; набор генов; при условии что;
зрелая личинка; в данный момент; новый хозяин.
V. Make up a list of words you consider indispensable for the understanding of
the text.
VI. Make up a model of the text information, sum it up, speaking on the two
ways of regarding metamorphosis.
VII. Imagine that your friend has just made a report on the nature of
metamorphosis. Ask him questions on the subject.
Text 19
I. Read the text and say what it is about.
DECEPTION BY IMITATION
In the battle for existence a weaker animal very often takes on a
resemblance in form to a stronger or more aggressive animal. This resemblance
is a protection to the weaker animal because it is often mistaken for the animal it
resembles and consequently goes unharmed. The similarity of form probably
came about by gradual changes from one generation to another in which animals
of a weaker species take on the characteristics of a stronger one. It is probably in
this way that a butterfly known as the viceroy has come to imitate a larger
species known as a monarch or milkweed butterfly. The monarch has large,
reddish-brown wings with black veins, a peculiar odor, and evidently an
unpleasant taste. The viceroy has grown to resemble the monarch so closely that
the birds can scarcely tell them apart and consequently leave both of them alone.
Some insects resemble flowers and leaves, and others even resemble sticks.
In each case the object mimicked is one that the insect's enemies avoid or in
which they are not interested. Insects that prey upon other insects often have the
chracteristics of something attractive to their prey. Certain spiders that live in
flowers are coloured like the flowers. This makes it possible for them to remain
hidden, waiting to seize as prey the unsuspecting insects that
7
соmе for pollen
and nectar.
The leaf insects are remarkable in that their similarity to leaves is almost
perfect. When they first hatch, they have a reddish color that makes them appear
like "buds. Then, as they begin to feed, they change their color to green, and
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