Task for satisfactory mark - Insects (ChUp4, Sc76)
1. Insects are invertebrates/vertebrates.
2. The number of extant species is about eight/ten million.
3. An insect has a three-part/four-part body.
4. The head has the antennae/hair and the mouth.
5. Some insects have strong teeth, other have short/long tubes.
6. The thorax has two/three pairs of legs and wings.
7. The abdomen may/must have one section.
8. All insects reproduce asexually/sexually.
9. Their reproductive cycle includes 3/6 stages.
10. Insects are divided into 2/3 groups.
11. Butterflies and moths are scaly-winged/two-winged insects.
12. Mosquitoes, flies, and horseflies are scaly-winged/two-winged insects.
13. They are pests/pets.
14. The honeybee is a scaly-winged/membrane-winged insect.
15. Invertebrates are useful/useless.
16. Earthworms break up the soil so that plants can die/grow.
17. Insects pollinate/pollute plants and cat insect pests.
18. One-celled invertebrates cause dead organisms to decay/be alive.
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I am going to tell you about my school since you are my best friend.
I returned to school again. I didn't like my first day at school. It was cold and rather boring. And the worst part of it is that my classes begin at eight o'clock. I usually come a little earlier so I have an opportunity to talk a little to my friends. We discuss the last school and home news. Soon the bell rings, and we hurry to a class. Usually I have 7 lessons a day, sometimes less. Today they ended up unusually early. During the most lessons we were only introduced to the new topics we are going to learn this year..