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atroni [7]
3 years ago
9

Why was the evolution of cyanobacteria such a significant event in Earth's history

Biology
1 answer:
mestny [16]3 years ago
8 0

Explanation:

oxygen, a byproduct of that photosynthesis, was released into the atmosphere, changing it in such a way that it may have allowed the evolution of more complex forms of life.

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What is preserved in Burgess Shale
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The Burgess Shale of British Columbia is famous for its exceptional preservation of mid-Cambrian organisms. Around 40 other sites have been discovered of a similar age, with soft tissues preserved in a similar, though not identical, fashion.

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how do the effects of DDT on an ecosystem illustrate the interdependence of life on earth?? Please help
meriva
DDT affects the environment negatively. In the past, DDT was known to not cause harm in human because the molecules of DDT are not absorbed by the human skin. But new studies suggested that humans actually have DDT on their bodies and it stays on the liver, kidneys and others. DDT is being used in agriculture; it would be drained into the bodies of water where fishes live, the fishes will then be eaten by birds, humans and other predators. This flow of contamination shows the interdependence of life on earth.
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3 years ago
In the new 6-kingdom system of classification, like the old 5-kingdom system, organisms are basically grouped by
DaniilM [7]
<span>The answer to the question stated above is letter A. Cell Structure.

In the new 6-kingdom system of classification, like the old 5-kingdom system, organisms are basically grouped by</span><span> cell structure.

The new 6-kingdom system of classification includes the following:
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6 0
3 years ago
What is the definition of the word Transformation
7nadin3 [17]

Answer:

significa el resultado de un proceso de cambio de forma. Sucede cuando una cosa, hecho o idea es convertida en otra.

Explanation:

8 0
3 years ago
Read 2 more answers
If element X has 18 protons, how many electrons does it have?
zloy xaker [14]
18 as well, I believe.
5 0
4 years ago
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