Answer:
The primary role of oxygen in cellular respiration is to make energy.
Explanation:
When we breathe our lungs inhale and exhale air. This is the way our body has to get in what we need the most: Oxygen. This is the star of the cellular respiration.
Cellular respiration is a process where the cells are able to make energy. Oxygen is needed in this process for organisms who have an aerobic respiration. Other organisms like some bacterias have an anaerobic respiration which does not need oxygen. In those cases, they have other mechanisms of making energy.
So we must talk about Aerobic Respiration, which uses Oxygen. Every cell in our body is engaged in this process. Cells use this element and glucose. Glucose is a type of sugar found in foods like fruits, cereals, sweets and many more. It has a lot of different steps. It starts converting glucose into ATP (adenosine triphosphate), or cellular energy, and carbon dioxide.
I would say the answer is C. Hope I helped ^-^
Sexual abstinence is when someone decides not be sexually active. Being abstinent is a conscious decision that one makes and you can make it at any point in your life. You can make the decision in your teens, 20's, 30's, 40's, 50's, and so on. People have all sorts of different reasons to choose to be abstinent.
For whatever reason you're being abstinent for whatever personal reasons you have, you want to make sure that you come to that decision on your own. It shouldn't be your partners decision whether or not you choose to be sexually active.
There are many benefits to not being sexually active such as preventing pregnancy, preventing infections such as STD's. These infections are when one person passes an infection to their partner such as a-nal sex, vaginal sex, and oral sex.
Some other benefits com down to people's own personal opinions such as waiting to find the right partner and focusing on more important activities in someone's lifetime before making this decision.
The elimination of waste is the primary function of the excretory system, which is made up of the kidneys, liver, large intestine, etc. This system is essential for the survival of organisms.