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Complete. Fertilisation
EduBook Organización
- 2444 visitas
Complete the text about fertilisation with the correct words: internal reptiles ovum Internal mammals female external Fertilisation of the by the sperm takes place in one of two ways: inside the body of…
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Learn. The different types of respiration - Animal nutrition
EduBook Organización
- 2425 visitas
Diffusion In unicellular organisms, like the amoeba, respiratory gases are exchanged across the whole surface of the body. These gases then cross the cell membranes by diffusion. Tracheal respiration…
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Reading vocabulary
Tiching explorer Organización
- 2 lo usan
- 3114 visitas
This resource contains a variety of modules with words (organized by word category) designed to help us improve vocabulary. Main topics are: Animals, Boyd, Bugs and insects, Food and drink, Nature,…
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Complete. Surface tension
EduBook Organización
- 2180 visitas
Complete the text with the missing words: object – greatest – membrane – less – mercury – resistance – solid The surface tension of a liquid is the of its surface to an placed upon it. The…
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Answer. Plant reproduction
EduBook Organización
- 2153 visitas
Think and answer: Do all plants have flowers? At what time of the year do most plants bloom (produce flowers)? Do you know the name of the species of tree in the photo? What fruit does it produce? What…
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Interpret. The pollination
EduBook Organización
- 1915 visitas
Do you think that the two types of flowers have the same type of pollination? Which of the two flowers could be pollinated by the wind? Which characteristics make this more likely? Why is the other type…
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Did you know?
EduBook Organización
- 1571 visitas
The surface tension of a liquid is the resistance its surface gives when an object is placed on it. The surface tension of water acts like an elastic membrane, and it can support small objects, such as…
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Classify. Invertebrates
EduBook Organización
- 3969 visitas
With the following classification keys, identify the invertebrates in the photos. Although there are five sections to the table, you only need to identify the four insects pictured. After that, answer…
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Animals are living things (II)
EduBook Organización
- 3935 visitas
How do animals move? Animals move in different ways, depending on where they live. Many animals move on land: Cheetahs use their legs to walk and run. Kangaroos use their legs to jump. Spiders use their…
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Think about it. Sexual reproduction in plants
EduBook Organización
- 2787 visitas
Remember what you have studied in this section and answer the questions: Why do more evolved plants have a smaller gametophyte? Discuss with a classmate. What is the advantage and disadvantage of having…
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