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galina1969 [7]
3 years ago
14

Describe the biological chemical processes that are responsible for producing oxygen in Earth's atmosphere, eventually leading t

o the Cambrian Explosion.
6.

Explain the importance of oxygen in the evolution of large multicellular animal life.
7.


pennfoster.
History
2 answers:
lesya692 [45]3 years ago
7 0

Answer:

5. As earth cooled, carbon dioxide dissolved in the early ocean. Cyanobacteria consumes carbon dioxide and converted it to oxygen. Methane was removed from the atmosphere as oxygen was produced, eventually leading to the Cambrian explosion.

6. Metabolic processes that use oxygen produce more energy than anaerobic metabolism. Simple diffusion of oxygen would limit the size of a multicellular eukaryote, but animals evolved ways to transport oxygen to their tissues, which permitted an increase to their size.

Explanation:

vaieri [72.5K]3 years ago
3 0

Answer:

(6. As earth cooled, carbon dioxide dissolved in the early ocean. Cyanobacteria consumes carbon dioxide and converted it to oxygen. Methane was removed from the atmosphere as oxygen was produced, eventually leading to the Cambrian explosion.

(7. Metabolic processes that use oxygen produce more energy than anaerobic metabolism. Simple diffusion of oxygen would limit the size of a multicellular eukaryote, but animals evolved ways to transport oxygen to their tissues, which permitted an increase to their size.

Explanation:

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What are the influences and differences between American English and British English?
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Answer:

Explanation:

Differences:

Probably the biggest difference among the two is -- vocabulary.

Both nations use some common terms on the daily basis that are differently written and pronounced.

The Americans live in apartments, the Brits live in a flat.

The Americans drive a truck, the Brits drive a lorry.

The difference is also seen in auxiliary verbs -- for example will and shall.

Even though Americans have that word in their vocabulary, they don't really use it. They find it too stiff and formal.

When a Brit would say, '' I shall go home now '' ,he express that this certain action will occur somewhere in the near future.

The Americans would say, '' I will go home now '' .

There is a visible difference in past tense verbs as well.

We all know the three columns that each verb has, well, Brits don't (almost) ever use the third column, aka, past participle.

When a Brit would say '' I haven never got a pet as a present '', American would answer '' I've gotten three by now ''.

When it comes to tag questions, Brits use it way more than the Americans, even though both of their dictionaries contain them.

A Brit would say '' You love me, don't you? '' where an American would simply keep it at '' You love me? ''

There are many difference in spelling, too.

For Americans, it's as simple as flavor, color, favor, labor.

For the Brits, it's a bit flavour, colour, favour and labour.

Still, there are many more similarities than actual differences.

Influences:

The Americans decided to change their language because of Noah Webster.

He had a vision that America as a new nation should have differences compared to the British people. He wanted to show America's independence.

For a fact, American English is actually older than British.

British English sounds more like french which can be seen in some of the words with - our.

Both of the nations have collected words from different languages: French, Arabic, Spanish... etc.

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