What prediction can be made about how the distribution of coral reef populations would be affected if the oceans in which they live were to experience significantly more cloudiness of the water? the coral population would decrease due to lack of sunlight. the coral would increase their primary productivity to record levels. the existing coral reefs would move to cooler northern waters. the total number of coral reefs would remain unchanged.

The correct answer is option A

The corals need clean and clear water that can allow the direct sunlight to pass to through it and reach corals.  

The sediments and the plankton on the surface of the water can cloud the water and decreases the amount of sunlight reaching the corals (zooxanthellae)

As a result of this the coral population would decrease in population due to lack of sunlight.

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.