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Alex Ar [27]
3 years ago
13

Free oxygen formed on earth after

Biology
1 answer:
harina [27]3 years ago
5 0

Answer: (1) photosynthesis occurred

Explanation: The photosynthesis process in cianobacteria changed the composition of earth's atmosphera, rising oxygen levels. This could be possible since photosynthesis used energy from the sun to produce energetic intermediaries to synthesize sugars, and as byproduct due to water photolisis, is oxygen.

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NEED HELP ASAP!!!! Explain why the fact that invasive species did not co-evolve with the native species unbalances an ecosystem.
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Answer: The invasive species unbalance an ecosystem because it takes over an ecosystem and does not let the other native species thrive while it takes over. There are many invasive species around the world even in your own town or state there is a type of fish suppose that is an invasive species to Michigan called a sea lamprey which kills fish native  to the great lakes and is taking over there are also zebra muscles if you need another example

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3 years ago
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Explain how conservation has saved the Bald Eagle?
sweet-ann [11.9K]

Answer:

They made it illegal to kill/ hunt eagles.

Explanation:

Hunting/ killing was slowly wiping out the eagles' population. This stopped though when conservation came around they made it illegal to hunt eagles, thus saving their kind.

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Which may lead to lower productivity because of a lack of incentives?
LekaFEV [45]
I believe the answer is Government subsidies. A subsidy is the form of cash payment or a tax reduction. It is normally given to remove some type of burden, and it is often considered to be in the overall interest of the public, given to promote a social good or economic policy. Tax subsidy; the government can create the same outcome through selective tax breaks as through cash payment. For example, suppose a government sends monetary assistance that reimburses 15% of all health expenditures to a group that is paying 15% income tax. Tax subsidies are also known as tax expenditures.
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Gracie squeezed some grapes and kept the juice in a vessel for 5 days at room temperature. On the fifth day she found that the j
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The changes in the grape juice happened due to the alcoholic fermentation of the grape juice that occurs due to the presence of aerobic bacteria. The presence of yeast is the main reason behind the process of fermentation taking place. The froth is produced due to the presence of the formation of acid and carbon dioxide. 
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2 years ago
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2. Ms. L's respiratory function was evaluated by quantifying different lung volumes and capaci-
Sphinxa [80]

Based on respiratory function tests, the correct options are:

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  • vital capacity
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<h3>What is a respiratory function tests?</h3>

A respiratory function test is a test done to evaluate the ability of the lungs to take in air and remove carbon dioxide

The machine used for this test is called a spirometer.

Therefore;

  • Ms. L's respiratory function was evaluate using a machine called a spirometer.
  • The amount of air that can be expelled by maximum ex-halation after maximum inhalation is termed the vital capacity
  • An increase in the amount of air remaining in her lungs after a normal expiration is called the residual volume.

Learn more about respiratory function test at: brainly.com/question/18117969

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