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pogonyaev
3 years ago
11

What are two sources of energy for the earth's system?

Biology
2 answers:
notka56 [123]3 years ago
7 0
The answer to the above question, is C. the main two sources are wind and sun (wind turbine and solar panels).
Ksivusya [100]3 years ago
3 0

wind and sun is your answer


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10 points
maria [59]

Answer: It is the universal solvent.

Explanation:

Because water is the universal solvent.

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3 years ago
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Explain why red blood cells are unable to replace damaged proteins
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The sole reason why red blood cells are unable to replace damaged proteins is that red blood cells lack DNA and cell organelles such as nucleus, ribosomes and mitochondria which are crucial for protein synthesis, assembly and repair. In other words they lack both the information and the machinery for making or repair of proteins.

Due to  lack of DNA and cell organelles, red blood cells cannot be able satisfy the central dogma which  summarizes synthesis of proteins as DNA → RNA → proteins.

DNA has the genetic information on how proteins should be made, RNA is responsible for transferring the information from DNA in the cell nucleus to the ribosomes  in the cytoplasm,  then translating or decoding  this information, which results in the making of  protein.

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3 years ago
What is the part of the cell cycle process by which chromosomes in a cell nucleus are separated into two identical sets of chrom
Zolol [24]
 <span>Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In <span>general, mitosis </span></span>
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3 years ago
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Norman Triplett observed that adolescents wound a fishing reel faster in the presence of someone working simultaneously on the s
slavikrds [6]

Answer:

social facilitation

Explanation:

The concept of social facilitation was first proposed by Norman Triplett. After observing a cycling event, in which he noticed that cyclist performed better when they have others around competing with them, rather than cycling alone just against time. This led him to duct an experiment where he gave some children strings to wound fishing reel. He observed that, children wound the fishing reel faster in the presence of other children performing similar task, when compared to when perform such task alone.

This concept discovered by Norman Triplett, best illustrates the concept of social facilitation, which posits that, individuals tend to perform better in the mere presence of others or when they perform a task with others, than when performing the task alone.

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What is a job of the skatetal system? Remove wast. Protect organs. Exchange oxygen and carbon dioxide. Deliver nutrients to the
MrRa [10]

Answer:

The correct answer is - Protect organs

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The skeletal system is the internal frame of the body that includes all the bones and joints present in the body. There are 206 bones in the adult human skeletal system.

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