1.3.5

Relationships in an Ecosystem

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Relationships Between Organisms

Within a habitat, all living things interact with one another, whether it be a predator/prey relationship or one organism using another for shelter.

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Organisms in the same habitat

  • Organisms are dependent on one another for a wide range of reasons:
    • They provide a food source (any organism that is consumed).
    • They help with pollination (insects such as bees).
    • They help provide shelter (some species of tree).
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Pollination

  • Humans depend on pollination more than others considering how we farm crops for large-scale agriculture and consumption.
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Negative impacts

  • Some organisms can affect their environment and often impact other species negatively.
  • An example is:
    • When a species over hunts a particular population causing them to die out - this can have implications for other organisms.
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Human impacts

  • If pollutants from humans make it into the environment, this can cause an accumulation of toxins in certain apex predators.
  • This can kill the predators.
  • Large-scale destruction of habitats (e.g. cutting down a rainforest) can have a huge effect on the organisms who live in that environment.

Jump to other topics

1Biology

1.1Cells, Tissues & Organs

1.2Reproduction & Variation

1.3Ecological Relationships & Classification

1.4Digestion & Nutrition

1.5Plants & Photosynthesis

1.6Biological Systems & Processes

2Chemistry

2.1Particles

2.2Chemical Reactions

2.3Atoms, Elements, Compounds

2.4The Periodic Table

2.5Materials & the Earth

2.6Reactivity

2.7Energetics

2.8Properties of Materials

3Physics

3.1Energy

3.2Forces & Motion

3.3Waves

3.4Electricity & Magnetism

3.5Matter

3.6Space Physics

4Thinking Scientifically

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