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BigorU [14]
3 years ago
9

What can a fossil be used for?

Biology
1 answer:
expeople1 [14]3 years ago
5 0

Answer: To tell how the environment was years ago and what kind of animals were able to live there. Hope this helps.

Explanation:

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Irradiation is right I think
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What is the difference between a theory and a law?
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Archaea bacteria are different from eubacteria largely by​
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Answer:

B)Genome

Explanation:

Archaea (Archaea) are single-celled microorganisms. Like bacteria, archaea lack a nucleus and are therefore prokaryotic. However, the differences at the molecular level between archaea and bacteria are so fundamental that they are classified into different groups. In fact, these differences are greater than there are, for example, between a plant and an animal. <u>Currently, archaea are considered to be </u><u>phylogenetically</u><u> closer to eukaryotes than to bacteria.</u>

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4 0
3 years ago
Question about nitrogen and phosphorous cycle? Which statements are true, list all that apply
vaieri [72.5K]

Answer: 1) When phosphorous is not bound in rocks, it moves quickly through land food webs. Constant use of phosphate-rich fertilizers will help increase phosphorus availability to plants, thus ultimately helping our ecosystems.

3) Minimizing the use of ammonia-rich fertilizers on lawns would not add excess nitrogen to the nitrogen cycle. As a result, it would help decrease the pollution of food webs in the oceans, decrease soil acidity on land, and decrease the amount of greenhouse gases in the atmosphere

Explanation:

The nitrogen and phosphorus cycles both are biochemical cycles. The nitrogen cycle involves the process of uptake of nitrogen from the atmosphere by the soil bacteria which is then become available to the plants for plant growth, from plants it is transferred to the other organisms in different forms.

The phosphorus is found in the rocks and these rocks wither and the inorganic phosphorus become available to the ecosystems.

Option 1 is correct, this is because the phosphorus is available on earth in the inorganic form inside the rocks, the withering and erosion processes make the phosphorus available to the plants. Another source of phosphorus to plants is phosphorus rich fertilizers. Thus plants will absorb phosphorus and grow. These plants will be consumed by other organisms thus the ecosystem will remain healthy.

Option 3 is correct, this is because nitrogen rich fertilizers can cause eutrophication in water bodies, or can contaminate the water. It will decrease the pH of the soil due to the formation of nitric acid. Also the nitrogen dioxide is the greenhouse gas.

 

4 0
3 years ago
Major subdivisions of the biosphere are
Ivan
There are three and they are the Atmosphere, lithosphere, and hydrosphere
3 0
4 years ago
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