Ecosytems

Question 1

What is a producer?

Answer 1

E.g grass uses sunlight energy to produce food

Question 2

What is a consumer

Answer 2

Gets its energy by eating other organisms. They can eat producers or other consumers

Question 3

What is a decomposer?

Answer 3

An organism that gets its energy by breaking down dead material, e.g. animal remains

Question 4

Example of a small scale uk ecosystem?

Answer 4

Epping forest - trees shed leaves - decompose into soil - returns nutrients to the soil, if there’s a disease outbreak in trees, fewer acorns are available for deer and squirrels affecting there populations

Question 5

What’s does a food chain show you?

Answer 5

What eats what

Question 6

What is a food web?

Answer 6

Lots of food chains and how they overlap

Question 7

Explain the nutrient cycle?

Answer 7

When dead material decomposes nutrients are released into the soil. This is then taken up by plants. The pants may be eaten by consumers. When the plants or consumers die nuitrents is brought back into the soil

Question 8

What effect would removing predators from an ecosystem have?

Answer 8

Means there’s more prey which could lead to overgrazing

Question 9

Distribution and characteristics tundra?

Answer 9

Found at high latitudes (above 60 degrees north) in northern Europe Canada ,Alaska. Winters cold, summers brief and there is little rainfall , hardly any trees - vegetation includes mosses, grasses , layer of permanently frozen ground called permafrost

Question 10

Distribution and characteristics grassland

Answer 10

Savannah found between tropics there is distinct dry and wet seasons , most vegetation is grasses , found in higher latitudes where there is more variation in temperature

Question 11

Distribution and characteristics temperate deciduous forest

Answer 11

Mainly in mid latitudes where there are four distinct seasons. Summers are warm, winters are relatively mild and there’s rainfall all year round. Trees loose leaves in winter to cope with cold

Question 12

Distribution and characteristics polar?

Answer 12

Found around the north and south poles. They are not very cold , icy and dry . Not much grows at all, they remain dark for serval months each year so the growing season is very short - about 2 months

Question 13

Distribution and characteristics hot desert?

Answer 13

Found between 15 and 35 north and south of the equator where there is little rainfall . It’s very hot during the day and very cold at night , shrubs and cacti are sparsely distributed in soil

Question 14

Distribution, characteristics tropical rainforests?

Answer 14

Around the equator, between the topics. Where it’s hot and wet all year round. Lush forest, dense canopies

Question 15

Distribution and characteristics boreal forest?

Answer 15

Also known as taiga found between 50 - 60 N. Winters are cold and dry and summers are mild and moist. Trees are coniferous - they are evergreen and have needles