Bob davison describes the endangered species act (esa) as an effective tool for conserving biological diversity. what is his rationale for the value of focusing on individual species? bob davison describes the endangered species act (esa) as an effective tool for conserving biological diversity. what is his rationale for the value of focusing on individual species? a focus on individual species is cheaper than protecting entire ecosystems. establishing public empathy for charismatic species provides an opportunity to educate people about lesser-known species. the public is not concerned about the economic costs of individual species recovery. the public tends to value intact ecosystems over particular plant and animal species.

If the birth rate of a population of dolphins is 2.0, the death rate is 0.5, and the population size is 100, what is this dolphin's population growth?

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?

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