This lesson discussed the engineering design process and the devastation of three ecosystems: the Kitakami River region, the Abukuma Highlands, and Japan's coastal habitat. In this activity, you will select one of these ecosystems and follow the steps of the engineering design process to design a recovery solution. Complete each section of the Recovering Ecosystems Worksheet, including the problem, sub-problems, criteria and constraints, and proposed solutions for ecosystem recovery. Instructions for each section are included in the worksheet. Be sure to review the assignment's rubric before completing and submitting this assignment.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.