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1) Why is biodiversity important? Discuss the ways in which the value may be assigned to biodiversity. Based on your readings, describe the pros and cons of assigning value to biodiversity based on the following considerations: economics, biological value, and ecological value. What other ways can value be assigned to biodiversity? 2) Discuss whether biodiversity loss is universal or localized. Which species, groups of species, species-interactions, etc. may be more at risk? Why? 3) What is the impact of land use change on local, regional, and global ecosystems. How is human-induced landscape change similar/ different that large scale environmental-induced landscape change? Describe how the occurrence of landscape change, and the impact of landscape change on the environment might be studied.
Explain anaerobic respiration in terms of an electron transport chain, proton motive force, electron donors and acceptors.
Describe the bacterial chromosome and outline the process by which it replicates by the semi-conservative method of replication.
Briefly explain how the effectiveness of antimicrobial agents varies with population size, population composition, concentration or intensity of the agent, treatment duration, temperature, and local environmental conditions.
A carnivorous bird (feeding on both herbivore/detritivore and carnivore levels) has an energy requirement of 18 kcal/day. If it feeds in our ecosystem for nine months (270 days) of the year, how large must its territory be to ensure its dietary ne..
Drosophilafemales homozygous for the third chromosomal genes pink-eye and ebony body were crossed with males homozygous for 2nd chromosomal gene apterous wings.
The average resting potential for a neuron is -70mV. Some neurons have a lower and some have a higher resting membrane potential. Explain how a neuron could potentially have a more negative resting membrane potential than another.
What is the correct order of the HIV lifecycle?
Assume that this population is undergoing mutational pressure. The rate of mutation is 1.0 x 10-4 for changing A to a and 1.0 x 10-5 for changing a to A. What is the allele frequency of A after a single generation? (do not round your answer)
Voltage dependent channels open through opening a gate that is a voltage sensor. Determine the names of these gates required for opening Na and K channels?
What environmental conditions would favor plant species with a strategy of producing many small seeds rather than a few large ones? What classification would we give to species utilizing one of these two strategies? Name and describe each.
The relative electrophoretic mobilities of a thirty kd protein and a 92-kd protein used as standards on an SDS polyacrylamide gel are 0.80 and 0.41, respectively.
What is the frequency of heterozygotes (Aa) in a population in which the frequency of all dominant phenotypes is 0.25 and the population is in H-W equilibrium?
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