When measuring the weight of individuals in a population of ground squirrels, what tools would be most appropriate

There are many ways to estimate ground squirrel numbers. The most common and popular monitoring technique is the combination of electronically recorded stress calls and visual counts where ground squirrels respond physically, vocally or both. You simply count the number of squirrels in a 100m by 100m area that respond to a hand-held imitation ground squirrel call tool.

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answer: c.

explanation:

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.