Hey y'all I just really need help with this question so if y'all didn't mind and try to help me that would be greatHELP ME PLEASE I'LL MARK YOU THE BRAINEST 2. Which variable by itself is least likely to cause the destruction of the reef ecosystem? Which variable by itself is more likely to cause the destruction of the reef ecosystem? (Hint: you may need to change just one variable at a time and observe the results to get this answer)

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

explanation: