Carl woeses's work separated prokaryotes into two groups, originally called Eubacteria and ARCHEA.
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Negative Feedback Loops- <em>dampen changes</em>
Positive Feedback Loops- <em>enhance changes</em>
I hope this is what you are looking for!
Answer:
a device for collecting and measuring rain as it falls
Nutrients Pollution
Surface Water Pollution
Oxygen Pollution
By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other. Often we can work out how and where they lived, and use this information to find out about ancient environments.
