Theory

Exercises

1. Human circulatory system and blood

Difficulty: easy

3
2. Blood vessels

Difficulty: easy

2
3. Arteries and veins

Difficulty: easy

2
4. Excretion in animals

Difficulty: easy

3
5. Transportation in plants

Difficulty: easy

3
6. The process of excretion in animals

Difficulty: medium

4
7. Blood, blood vessels and heart

Difficulty: medium

5
8. Heart and excretory system of humans

Difficulty: medium

4
9. The transport system of animals

Difficulty: medium

3
10. Circulation of blood in humans

Difficulty: medium

4
11. The transport system of humans and plants

Difficulty: medium

4
12. The circulatory and excretory system of humans

Difficulty: hard

6
13. Circulatory system of humans

Difficulty: hard

6

Tests

1. Training test 1

Difficulty: easy

10
2. Traning test 2

Difficulty: easy

10
3. Training test 3

Difficulty: medium

9

Teacher content