Answer:
Introduction
Carbon is a very important element to living things. As the second most common element in the human body, we know that human life without carbon would not be possible. Protein, carbohydrates, and fats are all part of the body and all contain carbon.
Carbon occurs in many forms on Earth and is found throughout the environment (Figure below). The element moves through organisms and then returns to the environment. When all this happens in balance, the ecosystem remains in balance too. In this section, let’s follow the path of a carbon atom over many years and see what happens.
Explaination:When your body breaks down food to produce energy, you break down protein, carbohydrates, and fat, and you breathe out carbon dioxide.
Given what we know, we can confirm that the scenario that best demonstrates the mechanism of apoptosis is 1, "An immune cell Self-destructs once it is no longer needed by the immune system".
<h3>What is apoptosis?</h3>
- This is what we describe as a programmed cellular death.
- This means that when a cell is no longer needed or is damaged or old, it is programmed to automatically self-destruct in order to make room for new cells.
- This is also an effective way to reuse the resources the cell contained.
- When this mechanism fails, it can often lead to the formation of cancer.
Therefore, we can confirm that option 1 which states "An immune cell Self-destructs once it is no longer needed by the immune system" is the best description available of apoptosis given its definition as a programmed cellular death.
To learn more about apoptosis visit:
brainly.com/question/19413533?referrer=searchResults
Answer:
True
Explanation:
Recognition requires one to memorize information for a second time. Anterograde amnesia is the memory loss of events that occurred after the onset of amnesia.
<u>Answer:</u>
Scientist think colonies of Cyanobacteria called stromatolites were responsible for the introduction of oxygen into earths atmosphere is true.
<u>Explanation:</u>
- In primeval earth’s atmosphere, stromatolites (colonies of Cyanobacteria) are believed to have increased the level of oxygen by their photosynthesis process.
- These are the first known organisms that started photosynthesis process and produced the oxygen to the earth’s atmosphere.
- There is a theory that, these organisms produced oxygen in the environment and the organism disappeared that couldn’t live in the atmosphere with the oxygen.
- Scientists gave this a name called as “great oxygenation event”.
Answer:
two nucleotides are deleted
Explanation:
Frameshift mutations arise when the normal sequence of codons is disrupted by the insertion or deletion of one or more nucleotides, provided that the number of nucleotides added or removed is not a multiple of three.
Because two nucleotides are deleted (2 is not divisble by 3), it would be a source of a frameshift mutation.
Hope this helped! :^)
