Use the scientific method to analyze this question: Why has the population of kangaroo rats declined in Riverside County?
What will be an ideal response?
First, the question has already been stated. Next, hypotheses will be formulated: Is there a new predator killing the kangaroo rats? Or has urban sprawl ruined their habitat? Or might an interaction with another organism be preventing successful reproduction? After a bit of analysis of the population and the habitat in which they live, you may make a prediction. In this particular case, it appears to be urban sprawl. This would then be tested with an experiment and observations. Populations both near and far from development would be studied to see if there is differential death due to predation, disease, parasites, etc. Population size of kangaroo rats living close to development would be estimated using live traps and compared to populations of kangaroo rats living far from developed areas. If the population close to new development is significantly lower than those far from developing areas, our hypothesis is supported.
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The muscles that move the eye have a high proportion of fast-twitch fibers and reach maximum tension very fast. These fibers belong to the class of __________ fibers.
A. type I B. type II C. type III D. type IV E. type V
Which of the following is/are TRUE
What will be an ideal response?
The pH of acid deposition occurring in the eastern United States is about ?
A. 6.4. B. 8.4. C. 4.6. D. 5.6. E. 7.0.
According to geological evidence, oxygen levels in the atmosphere began to increase about 2 billion years ago. This favored the evolution of multicellular, terrestrial organisms because:
A. More oxygen was available for cell respiration B. More oxygen was available for photosynthesis C. Some of the oxygen was used to help establish the ozone layer, and protect against harmful UV radiation D. All multicellular organisms require oxygen to survive E. More than one above is correct