The key answer of exercise 3
The key to exercise solutions in chapter 7 - Life skills for the textbook Performer B1, Vol. 2 with authors Marina Spiazzi, Marina Tavella e Margaret Layton from Zanichelli
Question
Read the text again and answer the questions.
Answer
- It means ‘variety of life on Earth’ and it comes from the contraction of the term ‘biological diversity’.
- There are three.
- It is the amount of variation in genetic material within a species.
- It is all the different species, as well as the differences within and between different species.
- The broadest diversity is ecosystem diversity, because within each ecosystem there is a great deal of both genetic and species diversity.
- An example of genetic diversity is the variation in the genes that determine hair colour in humans. The different types of mammals in a forest is an example of species diversity. The variation in ecosystems, such as deserts, forests and oceans, could be an example of ecosystem diversity
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