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1. What are the components of an ecosystem? Explain everything.

2. Classify the living beings that you can see in the diagram into the different trophic levels and define each trophic level. What is the name of this diagram? A Food chain or a food web. Justify your answer.

3. Explain the different trophic levels that we can find in an ecosystem and give an example of each one. Then make a food chain or food web including all the trophic levels.

4. Name the zones of a marine ecosystem depending on the distance to the coast (1. and 2.) and depending on the depth (a, b, c).

Explain the following words and put some examples of each of them.Benthos:

Nekton:

c.

2. 1.

a.

b.

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Plankton:

5. What is the ecological importance of wetlands and which types can we find? Explain each type

6. Analyze the adaptations. First say of what type are they (behavioural or anatomical, or both, and justify). Then, explain the adaptations relating them with the abiotic factors that produced them.

7. Explain the difference between anatomical and behavioural adaptation and put an example of each one.

8. Give and explain an example of adaptation in a plant or an animal to the following abiotic factors: water, light and temperature.

.

.

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9. Looking at these pictures, analyze the ecosystems. Say the name of the biome. Write the names of the animals and trees that we can find there in Spanish and English. Describe the abiotic factors that the ecosystem has.

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10. Say the type of interaction that each of these examples have. Justify why. (first say if they are interspecific or intraspecific and then, the type)

a. A pride of lions.

b. A flock of cranes.

c. A colony of bees.

d. A wolf and a deer.

e. A colony of ants.

f. A vulture and a death cow.

g. A tick and a dog.

h. An anemone and a clown fish.

i. A lion and a zebra.

j. A louse (piojo) and a person.

k. A group of termites.

l. A frog and a grasshopper.

m. Human and intestinal worms

n. A school of fish.

o. A herd of zebras.

p. A hyena and a dead gazelle.

q. Different trees trying to reach the light in the rainforest.

r. Elephants and Giraffes trying to drink.

s. Corals.

t. Shark and remora fish.

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11. Complete the following drawing about the rock cycle with the different types of rocks and the processes that transform them:

Answer the following questions:a) What type of rock is formed when magma cools?b) What type of rock is formed when other rocks suffer high temperatures and

pressures?c) What type of rock is formed from sediments?d) What is formed after the weathering and erosion of rocks?e) What type of rock is formed after cementation and compaction?f) What is the process that forms magma?

12. Explain the theory of plate tectonics.

Which types of boundaries are these examples? Justify your answer:

a) Atlantic ridge b) The Andes c)San Andreas fault c) The Himalayas

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13. Complete the picture with the different parts of the volcano and explain the different types of materials released during an eruption.

14. Answer the following questions about earthquakes:a) What is the difference between the hypocentre and the epicentre?

b) What means the magnitude of an earthquake?

c) What is the name of the scale used to measure the magnitude?

d) What is seismic risk? How can we prevent it?

e) Where in the World can we find areas with seismic risk and volcanic risk? Give an example.

15. Say if the following sentences are true or false and if they are false correct them:a) Cancer is a controlled process of division of cells in the human body.b) Neurologists treat disorders that affect the brain, the spinal cord and the nerves.c) An arrhythmia is a problem with the anatomy of the heart.d) Drinking milk everyday can prevent heart diseases.e) Alzheimer is an illness that produces uncontrolled shake of the body.f) When cancer travels to other parts of the body is called metacancer.g) AIDS can be transmitted from saliva of kisses.h) Malaria is transmitted by rats.i) The most effective method to treat gonorrhea is chemotherapy.j) Ebola is an illness that begun in Africa.