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frozen [14]
3 years ago
12

What is the highest mountain in north america,how high is it?

Biology
1 answer:
Step2247 [10]3 years ago
6 0

the highest mountain in north america is denali, which is in alaska. it is 20,310 feet high.

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how energy is recycled in an ecosystem. how our atmosphere maintains its temperature. the importance of decomposers in an ecosys
-BARSIC- [3]

Answer:

The flow of energy in ecosystems is unidirectional or one-way.

Explanation:

Energy is the ability to do work. Energy flows in one direction in an ecosystem and is not recycled. This is because during the transfer of energy from one level to another, energy is lost. Most of the energy received from the sun by producers, plants, is lost as heat to the surroundings. The rest energy is converted by plants to produce food in the form of chemical energy.

Primary consumers feed on plants and secondary consumers feed on the primary consumers and so on up to quaternary consumers. However, at each level of energy transfer, some energy is lost as heat during respiration, some as unused or undigested materials, while some others are used for each organisms metabolic activities. About 90% of energy in a trophic is used at that trophic level. Therefore, only about 10% as much energy is available to  organisms at each successive trophic level. Therefore, energy is not recycled in ecosystems.

Earth's atmosphere maintains its temperature by means of the earth's energy balance. This refers to how incoming from the sun and outgoing energy from the earth are in balance, thereby keeping earth's temperature constant.

Decomposers, are organisms such as bacteria, fungi, and small animals such as ants and worms that eat and decompose dead and waste organic matter and which recycle nutrients back into food chains making them available for plants use. Therefore, decomposers are an essential components of all ecosystems.

3 0
3 years ago
Recombinant DNA uses what medium to produce new genes?
mestny [16]

The genetic characteristic of two different organisms are induced into a new host organism for the purpose of producing new genes.

<u>Explanation:</u>

In the field of bio technology, Recombinant DNA technology plays a very important role. This helps in the production of genes. The first thing insulin of human was produced with this technology. In this technology, the gene that is to be produced is cut and it is placed inside a host organism where it gets multiplied.

This technology uses five steps in gene production. Firstly, the DNA that is essential will be cut. this is done by restriction site. PCR is used secondly in order to amplify the copies of the genes. Then these are induced into Vectors after which they will again be introduced into a host organism. Then finally the results will be the genes of the desired characteristics.

6 0
3 years ago
A change in direction without a change in speed is called velocity
maks197457 [2]

Velocity can vary as long there is specific direction (displacement)

Speed has no direction therefore change in speed is not necessary the velocity...

Velocity is also in a specified direction

4 0
3 years ago
To prepare for an important midterm, Zoe studies 90 minutes each night for five nights. Zoe's method exemplifies:
zavuch27 [327]
The answer would be: Distributed practice
Distributed practice is a method of learning that involves a repeated session of practice over a period of time. It is more effective than a longer session in short period of time. The spacing effect in this method will make it easier to store learned lesson into long-term memory. 
8 0
3 years ago
What kind of injury occurs most often in fireworks accidents?
EleoNora [17]
Hello! The correct answer for the question is: Burns.



I really hope this helped you! c:
4 0
3 years ago
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