organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.
Answer from: Quest
They carry out the exchange of gases as we breathe ( oxygen and carbon dioxide).
Another question on Chemistry
Chemistry, 22.06.2019 06:00
An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have