How many species of flowering plants have been found?
250,000 species
2 of 11
How many species do biologists think there are on Earth?
100 million species
3 of 11
Why is it important to understand about the living organisms around us?
Understanding how organisms live and where they live means we can do more to protect them and their environment.
4 of 11
Give a positive effect of human activity on biodiversity.
Sunken ships can become new habitats for marine organisms.
5 of 11
Give a negative effect of human activity on biodiversity.
Increasing population and our demands we put on the environment damage habitats. An understanding of biodiversity can help us to limit the damage we do.
6 of 11
Describe one level of biodiversity.
The range of habitats in which different species live.
7 of 11
Describe a second level of biodiversity.
The differences between species.
8 of 11
Describe a third level of biodiversity.
Genetic variation within a species
9 of 11
What is the Catalogue of Life?
A catalogue of all known species on Earth, created by Species 2000 and the Integrated Taxonomic Information System.
10 of 11
Why can't we be sure how accurate numbers of estimated species are?
We can't be sure we've found all the species on Earth. New species are found all the time. Evolution and speciation are continuing. Some species are becoming extinct.
11 of 11
Other cards in this set
Card 2
Front
How many species of flowering plants have been found?
Back
250,000 species
Card 3
Front
How many species do biologists think there are on Earth?
Back
Card 4
Front
Why is it important to understand about the living organisms around us?
Back
Card 5
Front
Give a positive effect of human activity on biodiversity.
Comments
No comments have yet been made