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1. Define the term niche.
2. Name three resources for which organisms might compete.
3. Define evolution. How might evolution be affected by competition.
4. In what ways do bacterial populations act like organisms? What properties do bacterial populations have that are unique to them?
5. What happens if the following microbes were put into a test tube at 28 degrees at a pH of 7.5? Would there be competition? which microbe or microbes would survive? Pseudomonas retii, scribio euglensis, escherichia coli, leuconostoc botolus.
6. What is the significance of the optimal temperature and pH for each microbe (Pseudomonas retii, scribio euglensis, escherichia coli, leuconostoc botolus.)
Although respiration occurs in all living cells, different cells respire at different rates. Explain why. How could you predict the relative respiratory rates of different tissues in fish by microscopic examination of cells?
Both excitatory and inhibitory neuron form junctions with muscles. By what mechanism do inhibitory neurotransmitters prevent the postsynaptic cell from firing an action potential?
Which of the following would be more likely to increase the resistance of bacteria to more than one class of antibiotics: the mutations in gyrA and parC, or the expression of NDM-1? Why?
q1. two pigs whose tails are accurately 25 cm in length are bred over 10 years and they produce 96 piglets with the
methicillin resistant staphylococcus aureus mrsa has become a big concern in hospitals throughout the country and the
If you close your eyes, hold your hands over your eyes for a short time, and then uncover your eyes, your pupils
Which of the following are pro-apoptotic proteins?
Evolution by natural selection occurs when three (3) conditions are met. What are these three requirements? Briefly explain each, and provide a hypothetical example to illustrate and explain these requirements and how they lead to evolution by nat..
On the Pacific island of Guam, large herbivorous bats called "flying foxes" commonly feed on cycad seeds, a potent source of neurotoxins. The flying foxes do not visit male cones. As a result, what should be true.
q. 1. how denaturing a protein alters the functions of that protein?2. if we are bleeding by the accident why the
Describe the major land biome where you live. How have human activities changed the landscape and how has this affected native species? Include specific examples
q1. imagine that the cross is made between aabb and aabb plants and that the offspring fall into approximately equal
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