Chapter 17 Biodiversity- Fill In

Chapter 17 Biodiversity- Fill In -...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 17: Preserving Earth’s Biodiversity Section 1: Biological Diversity Biodiversity:  ____________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________ Genetic diversity (within a species)   Ecosystem diversity Three Components: What is the difference between genetic diversity and ecosystem diversity? Numbers: Estimated that there are between ____ to ____ million different species  (huge range!!!) _______ million have been named o 330,000 plants o 45,000 vertebrates o 950,000 insects  ________ new each year ________ species threatened with extinction ________% of earth’s land (19 million km 2 ) is set aside to protect  biodiversity Why do we need organisms??? 1. Ecosystem Services: Important environmental benefits such as clean air,  water, and fertile soil that ecosystems provide 2. Species richness: The environment can change if species are removed.  Explain what this statement means.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
3. Genetic reserves: Maintain broad genetic base for species long-term 
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 6

Chapter 17 Biodiversity- Fill In -...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online