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1. Please describe a phylogenetic tree and explain what CAN be learned from it and what CANNOT be learned from it.
2. Please describe the current 3-domain system of classification and explain why it replaced the old 5-kingdom system. What major differences between these two taxonomic systems?
3. In order to categorize bacteria, scientists use various characteristics to classify them into groups. Please help to explain characteristics and tests used by microbiologists to assign bacteria to different taxonomic groups.
4. Some prokaryotes play essential roles in the ecology of the biosphere what are some examples that describe their impacts.
5. There are some examples of both harmful and beneficial prokaryotes. What are examples of some prokaryotes that are harmful to human health and several that are beneficial to human health. What is their role?
The advances in biotechnology, genetic research, and pharmaceutical discoveries have led to the development of super resistant bacteria and animals to drugs.
Any additional change occurs in integumentary system? Any additional change occurs in respiratory system?
What structural components would you add to increase microhabitat complexity to, make this concrete channel into a living stream?
Suppose that the monthly jobs report published the entire adult population of the state as follows: 25 million people employed, 3 million people unemployed
Diseases caused by eukaryotic parasites are much harder to treat than bacterial infections why?
Your friend really likes professional wrestling, and noticed the price of WWE stock has increased a lot in the past year. They ask, "What if I just
In the Meselson and Stahl experiment, E. coli cells were grown in heavy (15N) nitrogen, and then switched to light nitrogen. Briefly describe how a retroelement moves to a new location
Where does the lack of balance show up most often or most dramatically in healthcare facilities?
What is the difference between dsDNA and ssDNA? Distinguish between + and - sense RNA.
A cross is made between 2 E. coli strains: Hfr arg+ bio+ leu+ (x) F- arg- bio- leu-. Interuppted mating studies show that arg+ enteres the recipient last, so arg+ recombinants are selected on a medium containing bio and leu only.
A mixture of gases has the partial pressures of 0.308 atm due to He, .259 atm due to N2, and the rest is due to O2. If the total pressure of the mixture is 752 mmHg, what is the partial pressure due to oxygen?
What does a piloerector muscle do? What cell type produces a pigment that darkens the skin? What integumentary gland secretes an oil-like substance?
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