The population of fish would slowly begin to die out as the deeper the water the less dissolved gasses there are.
Carbon dioxide is the only that get filtered through each of those cycles
The correct answer is that variable number repeats are used in DNA tests; they have hundreds of possible lengths. Eye color is determined by variations in a person's genes. Most of the genes associated with eye color are involved in the production, transport, or storage of a pigment called, melanin. Eye color is directly related to the amount and quality of melanin in the front layers of the iris.