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A. At one time the continent of Australia was connected to Asia. About 50 million years ago Australia became separated. It has many unusal animal not found elsewhere, such as the kangaroo and the koala bear. Using the concepts of geographic isolation the gene pool, explain why these animal developed.
B.A species of bird with three-toed feet feeds mostly on worms and crwling insects. Over a period of several thousand years, the ocean level rises, and the region where the bird lives is flooded. Over several thousadn years ago or so, the birds' descendants evolve webbed feet and begin to feed on fish. Is this an example of gradualism or punctuated equilibrium? Can you give me an explanation of this answer?
What are the brief and basic steps that are widely believed to have resulted in the origin of the 1st bacteria from nonliving precursors?
We discussed the impact of pollution in both Lake Washington (Seattle) and Lake Erie (Great Lakes). Independent of their very different size, why have they responded so differently to pollution? Is there hope for Lake Erie? Why or why not
What range in values would you consider the change to be insignificant for HR, RR and GSR data? Why?
A persons normal tidal volume is 400 mL with a dead space of 100 mL. The respiratory rate is 12 breaths/min. The person is placed on ventilator for surgery and the tidal volume is 700 with a rate of 12. What is the approximate alveolar PCO2 for th..
identify the catabolic pathways used by bacteria pseudomonas
In a human population, the genotype frequencies at one locus are 0.5 AA, 0.4 Aa, and 0.1aa. What is the frequency of the A allele?
Hemophilia is a sex linked recessive trait found on the X chromosome. A woman who is a carrier for hemophilia, but does not have the disease marries a normal man. what are the chances their children will have hemophilia? what is the probability th..
Oops! You were cleaning out the aquariums in the biology lab and you accidentally placed the saltwater fish in the freshwater tank. What will happen to the cells of these fish?why proper hydration important for multicellular organisms.
What is happening during the plateau phase of cardiacdepolarization?
Explain how this exchange of materials helps support homeostasis within the cell, and allows for life functions within the cell.
What specific hypotheses would you test and what experimental procedures would you use to test these hypotheses?
How is a new copy of DNA elongated? List three keyproteins involved and explain their function. Mention leading and lagging strands and explainthe difference. How are the lagging strands connected?
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