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The simplest invertebrates
EduBook Organización
- 5331 visitas
The most common invertebrates are sponges, cnidarians, flatworms, nematodes, annelids, molluscs, echinoderms and arthropods. 1.1. Poriferans or sponges Sponges are aquatic animals. They act as filters…
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True/false. The simplest invertebrates
EduBook Organización
- 4897 visitas
Are the following sentences true or false? Sponges are plants that live on rocks in the sea. Sponges have cells with flagella, called choanocytes, to move around. Most flatworms are parasites.…
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Final self-evaluation 10.03 - The Animal Kingdom (I). Invertebrates
EduBook Organización
- 4733 visitas
Complete the following sentences with the missing words: are aquatic invertebrates that filter water to obtain food and live fixed to rocks. Sponges are covered in pores through which water passes to a…
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Contesta. Les plantes i la seva classificació
EduBook Organización
- 4672 visitas
Recorda el que has treballat en aquest apartat i contesta: Digues les característiques de les plantes que les distingeixen dels animals. Quin grup de vegetals és aquàtic? Per què les falgueres i les…
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Final self-evaluation 10.01 - The Animal Kingdom (I). Invertebrates
EduBook Organización
- 4433 visitas
Are the following sentences true or false? Sponges are aquatic animals that filter water to obtain food. Jellyfish are a type of sponge. Cnidarians have venomous cells that paralyse their prey.…
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El món per un forat. Societat: història dels transports
Xtec Organización
- 4084 visitas
Capítol de la sèrie 'El món per un forat' sobre l'evolució del transport terrestre, aquàtic i aeri de persones i mercaderies. Conté un vídeo, fotos amb imatges del vídeo, dibuixos…
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Think about it. Abiotic factors
EduBook Organización
- 3892 visitas
Remember what you have studied in this section and answer the questions: Why do you think life developed in water before it developed on land? Light is very important for which organisms? How does light…
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Abiotic factors
EduBook Organización
- 3388 visitas
2.1. How do abiotic factors affect living things? Abiotic factors determine the distribution, size and number of living things, and even their capacity to reproduce. The most influential abiotic factors…
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Final Autoevaluation 6.01 - The natural environment. Ecosystems
EduBook Organización
- 3391 visitas
Complete the text using these words: ecosystem - biotope - physical environment - biotic community - terrestrial An is a natural system consisting of living things which interact with each other. The of…
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Unit 6: The natural environment. Ecosystems
EduBook Organización
- 3299 visitas
Abiotic (adj): relating to the environment, not living things. aquatic (adj): relating to water. biome (n): a large area of the Earth which has similar plant and animal populations. biosphere (n): the…
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