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INGLÉS TÉCNICOSelf-assessment Week 10 - 19.4

Parasites are organisms that live at the expense of another organism. An example is _____.
Option A a larvae of parasitic wasps
lacewings
earwigs
hoverflies
a bird
Several beneficial micro-organisms can also be used _____ plant health and control pests and diseases.
to cut
Option E to improve
to worsen
to buy
not to improve
Non-selective chemical pesticides products _____, because they kill all kinds of organisms, including harmless and useful species.
get rid of the target pest, disease or weed
Option A are the most harmful
are used as the natural enemy of pest insects
are the most beneficial
are the most harmless
Selective chemical pesticides have a more limited range. They only _________ and other organisms are not affected.
are the most harmful
Option A get rid of the target pest, disease or weed
are the most beneficial
are used as the natural enemy of pest insects
are the most harmless
Predators are organisms that simply prey on other organisms for food. An example is _____.
a loranthus
a cuscuta
a ghost plant
a viscum
Option E a ladybird

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1. Parasites are organisms that live at the expense of another organism. An example is _____. 2. Several beneficial micro-organisms can also be used _____ plant health and control pests and diseases. 3. Non-selective chemical pesticides products _____, because they kill all kinds of organisms, including harmless and useful species. 4. Selective chemical pesticides have a more limited range. They only _________ and other organisms are not affected. 5. Predators are organisms that simply prey on other organisms for food. An example is _____.
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