6. Lion
7.raccoon
8.rat
9. A keystone is a organism that helps define the entire ecosystem, and if the species were to disappear from the ecosystem no other species would be able to fill its ecological niche the ecosystem would be forced to radically change allowing new and possibly invasive species to populate the habitat.
Answer:
Kidney
Explanation:
The kidney is the body system that regulates the acid base balance of the blood.
It is important because it allows scientists to classify, group, identify, and properly name organisms through the method of taxonomy. This method was brought about by Linnaeus Carolus.
I really hope this helps! I love science :D
Answer:
c
Explanation:
because the blood vessels dilate allowing more blood to flow near the surface of the skin allowing the sweat glands to increase the amount of sweat secreted which evaporates and takes heat with it
