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Anna11 [10]
3 years ago
7

Please help me on these 2 simple questions

Biology
1 answer:
Oksi-84 [34.3K]3 years ago
8 0

Answer:

archaebacteria

eubacteria

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Which statement correctly describes how nitrogen in the soil returns to the atmosphere?
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Living organisms such as plants and animals contains nitrogen in the form of the amino acids and proteins. When they die, the nitrogen in the form of ammonium is decomposed by microorganisms. It is then converted into nitrites and then to nitrates by nitrifying bacteria. The denitrifying bacteria then converts nitrates into nitrogen.
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On the pH scale a 7 indicates ? a) a base b) an acid
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7 is considered netural 
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f a plant has a mutation, and does not produce any photosynthetic pigments, what do you predict will happen to that plant
nydimaria [60]

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What are ways scientists have learned about the inside of the Earth? (More than one answer is possible)
irinina [24]

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A, C, and D *maybe B but im not sure abt it*

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8 0
3 years ago
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When you exercise you generate excess heat and your body temperature rises. blood vessels dilate in the skin, warm blood flows c
zalisa [80]

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The  correct answer is negative feedback.

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Negative feedback is considered the mechanism that frequently regulates biological reactions in the body. Negative feedback helps reduce the stimulation of some processes, such as controlling the temperature.

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In this case, on the temperature, the feedback is responsible for putting the system to work from the moment it starts to sweat using the different processes to regulate the temperature. This process uses help from enzymes and body pathways.

<em>I hope this information can help you. </em>

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