Any vessel conveying blood: arteries, arterioles, capillaries, venules, veins. conveying <span>blood</span>
Answer:
The food we eat - our diet - is made up of different biological molecules which gives us energy and contain chemicals we need to grow and repair ourselves and help our cells function in our body.
Carbohydrates and fats are made up of carbon, hydrogen and oxygen.
Proteins contain carbon, hydrogen, oxygen and nitrogen.
Coal, oil, and natural gas are the three main fossil fuels<span>—carbon-based </span>fuels<span>stored in Earth's crust. ... But the major concern is the carbon dioxide emitted from burning </span>fossil fuels<span>. Carbon dioxide levels in the atmosphere are rising and raising the temperature of Earth, which threatens widespread climate change.</span>
Answer:
The correct answer is option B) "A positive feedback loop".
Explanation:
A positive feedback loop is defined as a condition where a reaction produces a molecule that increases the rate of this same reaction. This is what happens with the pepsinogen and the pepsin, since pepsin is the product of the reaction of pepsinogen hydrolysis and pepsin itself can perform the reaction, which in fact increases the rate of reaction.
