After the fossils are buried in the mud the soft tissues start to decompose rapidly. Leaving only the hard shells or bones of the animal. With time, sediment starts to build up on the top and then hardens into rock. The bones then start to decay, minerals start to enter and then end up replacing the organic material cell by cell in a process that is known as "petrification." So the answer you are looking for is B, Mud can prevent oxygen from reaching the dead organism.
Answer:
The constants are just variables that are kept constant throughout the experiment. For example, even though the question did not mention this, we can assume that sunlight is a constant, otherwise it wouldn't be a fair experiment.
Some of the constants could be...
- Sunlight
- Water
- Room temperature
- Hours of light
- Soil quality
Let me know if this helps!
The equation is glucose + oxygen = carbon dioxide + water + energy
It’s actually Cystic Fibrosis, an inherited disease that causes the body to produce a thick/sticky mucus in organs like the lung, pancreas, etc
Hydrogen has one valence electron. To make it an ion, you need to remove this valence electron. When you remove an electron, the element becomes positive because you are taking away the negative