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Transcript 
What are keystone
species?
A keystone species is a plant or animal species that plays a special and
crucial role in the way an ecosystem works. Without keystone species,
the ecosystem would be dramatically different or cease to exist
altogether. All species in an ecosystem, or habitat, rely on each other.
keystone
species
Bibliography websites

http://education.nationalgeographic.org/encyclopedia/ke
ystone-species/

https://www.google.com/search?q=keystone+species&saf
e=strict&biw=1366&bih=599&site=webhp&source=lnms&sa
=X&ved=0ahUKEwiHyMWxpdTLAhVL4iYKHV6aBIwQ_AUIBigA
&dpr=1

https://en.wikipedia.org/wiki/Keystone_species

https://www.google.com
Bibliography images

http://www.nature.com/scitable/content/ne0000/ne0000/ne0000/ne0000/1
5829923/f4_wagner.jpg

http://a.static.trunity.net/files/136601_136700/136625/thumbs/sea_otter_w
ith_sea_urchin_438x0_scale.jpg

http://media.education.nationalgeographic.com/assets/photos/000/222/222
53_c0-216-743773_r160x120.jpg?ba703665fe4f641fa0de7ace9ea5aebfa97b898a
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