Very simple. At rest, you have a number of bpm. After exercise, the heart can't return abruptly to the rest speed, and it keeps a faster rate for a while.
A. chemical precipitation of minerals from seawater
Answer: Cellular respiration
Explanation:
In the presence of oxygen glucose is oxidised through a series of enzyme coordinated reactions to produce energy which is stored in form of ATP.
Answer:
A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion. ... Fossil fuels contain high percentages of carbon and include petroleum, coal, and natural gas.
Explanation:
