ecosystems

Question 1

what is an ecosystem

Answer 1

a natural system in which plants, animals and the environment interact with each other, often with complex relationships between the biotic and abiotic factors

Question 2

abiotic vs biotic

Answer 2

abiotic: non living
biotic: living

Question 3

what is a producer

Answer 3

organisms that convert the energy from the sun into their own sugars for growth

Question 4

what is a consumer

Answer 4

organisms that get their energy from eating producers

Question 5

what are decomposers

Answer 5

organisms that break down organic matter and release the nutrients to the soil, aiding nutrient recycling

Question 6

example of small ecosystem food chain

Answer 6

pond:
algae - midge larvae - small fish - carnivorous fish - heron

Question 7

4 human activities that impacts a pond

Answer 7

fertilisers - eutrophocation
deforestation - habitat destroyed for vital organisms within ecosystem
removing hedgerows - same

Question 8

natural changes that impact a pond

Answer 8

extreme weather - droughts can completely destroy entire pond
climate change
new organisms - more competition/less prey

Question 9

example of biome, characteristics

latitudinal belts

Answer 9

tundra - far north around arctic circle
- cold & short summer, no trees (dry)