Cover of the textbook Performer B1, Vol. 2

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

  1. It means ‘variety of life on Earth’ and it comes from the contraction of the term ‘biological diversity’.
  2. There are three.
  3. It is the amount of variation in genetic material within a species.
  4. It is all the different species, as well as the differences within and between different species.
  5. The broadest diversity is ecosystem diversity, because within each ecosystem there is a great deal of both genetic and species diversity.
  6. 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