Throughout human history, major migrations have been spurred by sharp decreases in the availability of food caused by hazards or changes in climate. For example, the —————
was the result of a drought and wind-driven erosion. The
—————
on the other hand, was caused by a fungal disease that infected an important crop.

answer; ///i believe that the correct answer is (e); check first good

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics

the answer is a) cell division.

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