Ecosystems

Question 1

What is a global scale ecosystem called

Answer 1

Biome

Question 2

What are producers

Answer 2

Convert energy from the environment into glucose. They do this by photosynthesis

Question 3

What are consumers

Answer 3

Get energy from the sugars produced by producers, eating plants basically.

Question 4

What are decomposers

Answer 4

Break down plant or animal material and return the nutrients to the soil. e.g bacteria and fungi.

Question 5

What is a food chain

Answer 5

Shows the direct links between producers and consumers in the form of a line.

Question 6

What is a food web

Answer 6

Shows all connections between producers and consumers in a complex web.

Question 7

What is nutrient cycling

Answer 7

Nutrients are foods that are used by plants and animals to grow. There are two main sources of nutrients-
Rainwater washes chemicals out of the atmosphere
weathered rock releases nutrients into the soil.
When plants or animals die, the decomposers help recycle the nutrients making them available once again for the growth of plants and animals-nutrient cycle.

Question 8

Pond bottom

Answer 8

little oxygen and little light

Question 9

pond surface

Answer 9

lots of oxygen and sunlight.

Question 10

Example of natural change to an ecosystem

Answer 10

drought

Question 11

Changes due to human activity

Answer 11

agricultural fertilisers, woods cut, hedgerows removed to increase field size.

Question 12

Example of restoration of lake

Answer 12

Avington park lake, Winchester, Hampshire- 2014

Question 13

Where is tundra found

Answer 13

Artic circle