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Flashcards in Diversity Of Life Deck (9)
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1

Define biodiverstiy

The variability among living organisms, including diversity within species, between species and of ecosystems

2

What are the taxas that are well described?

Plants and chordates

3

Which taxa is most highly discovered per year?

Insects

4

Why can’t we be more accurate about number of species?

1. Lack of morphological variation in some taxa (bacteria)
2. Function of effort in looking (birds vs nematodes)
3. Sampling - rich habitats (rainforest)
- big inaccessible habitats (ocean)

5

What is ecosystem services?

The benefits of having healthy ecosystems with high biodiversity to society and the economy

6

Why are living organisms important for medicine?

20,000 medicinal plants ($50 billion/year) 80% of people in developing countries dependant

7

Why is the rosy periwinkle important?

Helps to treat diabetes and leukaemia

8

Why classify organisms?

To group organisms to reflect similarities and relationships
To organise a universal way of naming organisms (Linnaeus - binomial nomenclature)

9

How old is the earth?

4600my