Answer:
The number of cell divisions is too large to even estimate.
Explanation:
Think, for every cell to be formed, a parent cell needed to divide. on top of that, for every parent cell is the result of another parent cell. Think of how small a cell is, and think of how many cells are in the onion. The fact that onions are still onions is incredible, because a DNA mutation occurs at a very high rate during cell division. When DNA divides, it sometimes doesn't divide evenly, resulting in too much DNA is one cell, and not enough in another. Science has proven that the composition of DNA is what makes humans humans, trees trees, and onions onions. The fact that onions have withstood the millions upon millions of DNA mutations while still remaining a species, is astonishing.
<em>BRAINLIEST PLS!!!</em>
1. RNA
2. Nucleic acid.
3. Units.
4. DNA.
5. Protein.
6. Transcription
7. Molecules
8. Units
9. Amino acids.
10. Translation.
<h3><u>Explanation:</u></h3>
Protein synthesis and the RNA synthesis is the total process that takes place together in each and every cell which is the Central Dogma theory.
In this theory, the RNAs are produced from the DNA by means of the process of transcription. In this process, the enzyme DNA dependent RNA polymerase acts as the primary DNA.
In the second step, the RNA produces the protein by the process of translation. This process involves the participation of each and every types of RNA like the rRNA, tRNA, and mRNA. These RNAs are all involved to form proteins by accumulation of amino acids and polymerizing them to form proteins.
An example of this would be eye color. You can put contacts in changing the color but not necessarily changing the genes.
Answer:
The excretory system helps the respiratory system by removing carbon dioxide that is produced during respiration (third option).
Explanation:
The lungs are in charge of the breathing process, being the main organ of the respiratory system. Each lung is considered an excretory organ —belonging to the excretory system— since it is capable of eliminating the carbon dioxide (CO₂) produced by the metabolism during expiration.
As a result of the gaseous exchange, the oxygen entering the lungs through the inhaled air passes into the blood, while the CO₂ is removed from the blood. This CO₂ is removed during expiration, which makes the lungs part of the excretory system.
The other options are not correct because:
- <em>The excretory system does </em><u><em>not introduce more oxygen into the lungs</em></u><em>.
</em>
- <em>The </em><u><em>circulation of blood in and out of the lungs</em></u><em> is a function of the circulatory system.
</em>
- <u><em>Urine is not produced by breathing</em></u><em>.</em>
