Sources during exercise based on the type of exercise performed, and therefore in most occasions the body will overlap between aerobic and anaerobic energy pathways. ... Conversely, lower levels of lactic acid means that the aerobic pathway predominated.
Is 24 because 48 divided by 2 is equal to 24
Fossils should be your answer
Fossils usually are bones, as bones are strong, and can last for long amounts of time without breaking down.
hope this helps
