I would say the last one. Yes, the coral reef in the south is being threaten but, it’s not the only one. Many other reefs are being threatened. Why? To find the problem to this reef you need to find the problems of other reefs and compare the data. Which ever the most problem cause you get rid of that first.
Answer:
I believe it is Hubble's law but I could be wrong
Answer: absorption
Explanation: “The process or action by which one thing absorbs or is absorbed by another.”
In this case, matter and energy is absorbed.
Recessive traits are visible in the organisms phenotype as long as TWO recessive traits are present.
In order for natural selection to take place we must have "variety in a population". This variety of traits is what allows natural selection to "pick" the most favorable traits.