Answer:
c. Glycolysis evolved in an oxygen-rich environment.
Explanation:
Glycolysis is the pathway that breaks down glucose into two molecules of pyruvate. It is a common pathway that is performed by both aerobic and anaerobic organisms. In aerobic organisms, glycolysis is followed by Kreb's cycle and electron transport chain. In anaerobic organisms, alcohol or lactic acid fermentation regenerate the NAD+ which is required to sustain glycolysis.
Therefore, glycolysis is independent of oxygen availability and can be performed under both aerobic and anaerobic conditions. This means that the pathway of glycolysis evolved under anaerobic conditions.
Answer:
Explanation:
a "y" shaped protein that helps destroy pathogens. Antibody is also know as immunoglobulin because it is used by the immune system
<span>Cardiovascular exercise is important, after a prolonged break in physical activity, it is recommended to do between 30 and 45 minutes of moderate cardiovascular activity, between three and five days a week. You can also alternate low and high density workouts every day. The important thing is to allow the trained muscles to recover.</span>