What Is Biodiversity? | Ecology & Environment | Biology | FuseSchool
Biodiversity is a key concept in ecology and has importance on both local and global scales. Biodiversity is the degree of variation of life, or put more simply, the number of different individuals and lifeforms in an area.
Scientists usually measure biodiversity on either the genetic, species, or ecosystem levels. For example, if you wanted to measure the biodiversity of beetles on a global scale, you would find that there are over 350,000 known species of beetles on the planet. However, if you wanted to measure the biodiversity of beetles locally, you might only find 10 or 20 species. The reason for this difference is that biodiversity varies greatly with the location, habitat, and species being surveyed.
In general terms, biodiversity tends to be highest at the equator, and decrease at higher latitudes - i.e as you get further away from the equator. Knowing this information, where would you expect to find the habitats with the lowest biodiversity?
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Transcript: alugha
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Plants have developed responses called tropisms. A tropism is a growth in response to a stimulus; so light and water in the plant’s case.
There are different types of tropisms: Positive tropisms are when growth is towards the stimulus - so the plant growing towards the light to maximise the stimul
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CREDITS
Animation & Design: Waldi Apollis
Narration: Dale Bennett
Script: Lucy Billings
Look at these baby animals. You will have immediately observed how cute and fluffy they are but you will
also have noticed that they are different -
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Enzymes are really important proteins, that speed up the rates of reactions such as in photosynthesis, respiration and protein synthesis.
The enzymes and substrates are always moving, and occasionally they collide at the right speed and