Answer:
A. chromosomes
Explanation:
Chromosomes are structures found in the center (nucleus) of cells that carry long pieces of DNA. DNA is the material that contains genes and is the building block of the human body.
Chromosomes come in pairs. Normally, each cell in the human body has 23 pairs of chromosomes (46 chromosomes in all), of which half comes from the mother and half from the father.
Due to its cleaner combustion, natural gas is the most environmentally safe fossil fuel. Natural gas doesn't have as many toxic combustion byproducts as other fossil fuels.
- Natural gas is adaptable. Starting and stopping a gas-fired power plant is substantially faster than one that burns coal.
- Due to its flexibility, it complements renewable energy sources like solar and wind, which are only usable when the sun is out and the wind is blowing.
- When burned to produce power, natural gas is the cleanest-burning hydrocarbon, releasing about half as much carbon dioxide (CO2) and only one-tenth as much air pollutants as coal.
- By switching to natural gas from coal, there is a significant opportunity to cut CO2 emissions and air pollution in the near future.
- Because Natural gas is now so widely accessible through LNG, it can assist nations in coping with short-term supply interruptions.
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DNA<span>) is a nucleic acid that contains the genetic instructions for the development and function of living things. cellular life and some viruses contain </span>DNA<span>. The main </span>role<span> of </span>DNA<span> in the cell is the long term storage of information.</span>
Attached is an image of a <span>catechol and a hydroquinone.
The specifity of the catechol oxidase is given by the spatial position of the OH groups. Most of the enzymes have an active site that's specific to spatial conformities of the substrate. If the substrate is not in such spatial conformation it may not be recognised be the enzyme.</span>