Answer:
River capture events cause isolation of populations of freshwater fish. These populations then evolve separately, as their genes mutate in different ways. Without reproductive homogenization, the populations can become quite different, and can even become separate species on longer time scales
Nearly 20 ships and 300 planes were destroyed, as a result the U.S navy rebounded with nuking a Hiroshima
Answer:
1. The sample design should yield a truly representative sample
2. The sample design should be such that it results in small sampling error
3. The sample design should be viable in the context of budgetary constraints of the research study
4. The sample design should be such that the systematic bias can be controlled
5. The sample must be such that the results of the sample study would be applicable, in general, to the universe at a reasonable level of confidence.
Explanation: