Answer:
D. Oxygen
Explanation:
Food molecules are broken down by reacting with oxygen. Just like burning the candle in oxygen. Cells also carry out reactions that join together monomers such as amino acids, sugars, nucleotides, etc., to form long polymer chains.
Answer: Positive reinforcement
Explanation:
Positive reinforcement refers to the state of providing the subject with a reward or something whenever they tend to perform action required, so that they can associate this action with reward and therefore tend to do often. This reward is known as reinforcing stimulus. This type of consequence tend to works because in this case the brain frequently connects the desired action with the reward, and thus subject tends to repeat this desired action in order to get the reward in the future.
A giffen good is a good whose demand rises when the price rises, which is opposite to the laws of demand because the laws of demand state that a rise in price will result in a reduction of demand. An example can be a staple food like bread. If the price of bread rises, people will buy it more because they'll have to cut back on other more expensive things, of course this applies in theory.
The arrows that are pointing in the wrong direction is e is pointing the wrong way
