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Elden [556K]
3 years ago
7

How did life begin?

Biology
1 answer:
Feliz [49]3 years ago
6 0

Explanation:

Many scientists believe that RNA, or something similar to RNA, was the first molecule on Earth to self-replicate and begin the process of evolution that led to more advanced forms of life, including human beings.

The main causes of climate change are: Humanity's increased use of fossil fuels – such as coal, oil and gas to generate electricity, run cars and other forms of transport, and power manufacturing and industry. Deforestation

Volcanologists can predict eruptions—if they have a thorough understanding of a volcano's eruptive history, if they can install the proper instrumentation on a volcano well in advance of an eruption, and if they can continuously monitor and adequately interpret data coming from that equipment.

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7 0
2 years ago
The structure of a human skin cell differs from that of a human muscle cell. The two cells most likely have different __________
AnnyKZ [126]

Answer:

The correct answer would be - functions.

Explanation:

The structure of the skin cells and muscle cells are different and have a different number of cell organelles on their role in the body. Skin cells are a special type of cells that keep on shedding and replaced by new ones therefore they need less energy and have many mitochondria.

In contrast, muscle cells have different structures as they need a high amount of energy to make movements and therefore have lots of mitochondria in the cell.

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3 years ago
2. Most mutations are "silent." What does this mean?​
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Explanation:

Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein.

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3 years ago
Which formula for sulfuric acid is written correctly to show one surfer atom, two hydrogen atoms , and four oxygen atoms
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