Answer:
Cellular respiration that proceeds in the absence of oxygen is anaerobic respiration. Cellular respiration that proceeds in the presence of oxygen is aerobic respiration. Anaerobic respiration evolved prior to aerobic respiration.
The innermost layer of the meninges is the pia mater.
Answer:
Longer then is the answerrrrr
The answer is F.
The lower the sediment and dirt is, the older the fossil.