Answer the following question given this paragraph: 

There are two types of cellular respiration (see Cellular Respiration concept): aerobic and anaerobic. One occurs in the presence of oxygen ( aerobic ), and one occurs in the absence of oxygen ( anaerobic ). Both begin with glycolysis - the splitting of glucose.


Q: What type of cellular respiration occurs in the presence of oxygen?

 Choices:

- hyperbaric

- anaerobic

- extracellular

- aerobic

A:
aerobic
