Biology, 10.11.2020 01:10 hannahmorgret7811
Lab Report for Population Dynamics Lab Population Dynamics Lab Report Instructions: As you complete each slide of the Population Dynamics Virtual Lab Activity, please fill in this lab report with the appropriate information and data. Title: Objective(s): Hypotheses: Variables Materials: The Population Dynamics Virtual Lab Activity Population Dynamics Lab Report Procedures: The procedures are listed in Population Dynamics Virtual Lab Activity. You do not need to include them here. Data and Observations Table 1: Predation and Carrying Capacity Trial Starting Seal population Starting Whale population Highest Seal Population Highest Whale Population 1 25 25 2 25 3 25 Table 2: Growth Rate and Capture Efficiency Trial Seal birth rate Whale birth rate Highest Seal Population Highest Whale Population 1 0.05 0.005 2 0.005 Table 3: Death Rate and Capture Efficiency Trial Whale death rate Whale capture efficiency Highest Seal Population Highest Whale Population 1 0.05 0.005 2 0.005 Conclusion: Be sure to answer the following reflection questions in the conclusion of your lab report: Were your hypotheses correct or incorrect? Why or why not? Using Table 1, which of the three trials produced the highest population for both the whales and the seals? Why do you think this trial had the best outcome for the whale and seal populations? Using Table 2 and 3, explain how the birth rates of the seals and the death rates of the whales affected the population for both whales and seals. Questions: Climate change (an abiotic factor) has slowly decreased habitat for the arctic seals. Predict how a reduction in habitat could change the capture efficiency of the killer whales. How would this affect the carrying capacities for both the whales and the seals? If another source of prey were available to the whales, what changes in population size would you expect for the seals and the whales? What are the limitations of the population dynamics lab? Is the lab activity a realistic representation of an arctic marine ecosystem? Note: Please provide detailed support for your opinion.
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Biology, 21.06.2019 20:00, u8p4
Over the past 60 years, many amphibian species have experienced significant population declines and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. chytridiomycosis is a fungal disease first identified in 1998 as a cause of massive amphibian deaths. in some severely impacted populations, a few individuals have survived, perhaps because of some natural resistance. if these resistant individuals continue to survive and prosper, new resistant populations might emerge. this would be an example of the founder effect artificial selection genetic drift natural selection sexual selection
Answers: 3
Biology, 21.06.2019 21:00, Strick1530
Idont understand by supporting the plant and holding the leaves up to the light. question 3 options: tap or fibrous root flower petals herbaceous or wood stems leaves with stomata
Answers: 1
Lab Report for Population Dynamics Lab Population Dynamics Lab Report Instructions: As you complete...
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