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An ecologist has been reading the literature on the subject of factors affecting growth and metamorphosis of tadpoles in ponds. Some frog species (e.g. Hyla gratiosa) reproduce in ponds that are ephemeral (i.e. they dry up from time to time), while other frog species (e.g. Hyla cinerea) reproduce in ponds that are permanent. Previous work has suggested that tadpoles of species that reproduce in temporary ponds are able to speed up their growth in response to a drying habitat, so as to metamorphose into frogs before the pond dries up. The ecologist would like to explore these ideas and conduct some experiments.
Considering the above observations and using your knowledge of Underwood's (1990) logical scheme for making progress in science, write down:
a. a possible model (Note: more than one model can flow from these observations - just choose one for this exercise);.
b. a hypothesis derived from your proposed model; and
c. a consequent logical null hypothesis.
d. Propose an appropriate experimental design to test the null hypothesis.
Bread is a related good to peanut butter: show on the graph of the market for peanut butter, the impact on the price and quantity from an increase in the price of bread.
Suppose the country club bills based on a sample of 4 members are: 358, 958, 665, 846. What is the standard deviation for this sample of bills? (please round your answer to 1 decim
You have acquired a CT scanner at a cost of $750,000. You expect to perform 7,000 procedures per year over the estimated 5-year life of the scanner. Assuming no salvage value and a
Expenditures and the Effects of Fiscal Policy are stated as follows: Having finished the discussion on the tax policy and taxation, now let’s us focus on expenditures and the e
using the ppf model explain the principles of economics of allocative efficiency
State the market for overnight loans Overnight interest rates are rates for loans over a single night - these are the shortest of all interest rates. During the day, banks norm
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How much money can banks create? Does this mean that banks can create an unlimited amount of money? The answer is no - that would require them to lend an unlimited amount of m
What is the present worth of a cash flow that gives you $6 in every time period from 1 to 20 when the interest rate is zero?
What does the United States do better than other countries?
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