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Question: The habitat of one species of frog is the tall green grasses in a swamp. The vast majority of the frogs in this population are green. A few individual frogs carry a mutation that prevents the production of the green pigment; as a result these individual frogs are brown. The temperature in this area rises and less rain falls over a 10 year period, and as a result the swamp begins to dry up and the grasses turn brown. Using what you have learned about natural selection, explain how this change in environment may have affected the evolution this frog population (not including possible direct effects of warmer temperatures and less rain on the frogs). Include the following terms in your explanation: allele frequency, selective pressure, differential reproduction, beneficial trait, evolution.
A thirty-five year old man has been brought in to the hospital with severe vomiting, diarrhea, abdominal cramping, and bradycardia.
n a folded protein, most of the nonpolar amino acids are buried inside the protein fold, whereas the polar and charged side chains are exposed to the components in the cytosol.
Assume the charge at the center is now increased to +9Q, while the charge at the surface of the conductor is changed to -13Q.
During gym class Sally noticed that her friend Melissa always ran faster than her. Sally knew that they exercised equally, so she wondered what could cause Melissa to run so fast.
Explain about the cell wall and nucleoid of bacterial cell, their structure and composition in detail. Explain the functions of the sensory neurons, interneurons, and motor neurons in the nervous system in brief.
A beaker is separated through a barrier which only glucose can pass. The right side has 10 mM glucose and the left side has zeromM of glucose.
How does the net amount of energy released during the breakdown of sucrose compare between spontaneous reactions and catalyzed by sucrase.
Without oxygen, cellular respiration grinds to a standstill, although glycolysis can continue to make some ATP anaerobically for a short time. While oxygen runs out, why does electron transport stop? Why do you thing the Krebs cycle stops.
DNA of a certain species of yeast has thymidilic acid
Suppose a protein of interest is known to bind the mitochondria to the ER. Suppose these proteins are small enough to fit into the vesicles and transfer to Goldgi apparatus.
What are the disadvantage and advantage of each and which commonly applies to hospitality industry. How is this caused by the sympathetic nervous division.
If populations are sustaining growth at r = 0.088 and the population in 2001 is 3000 individuals, in what year would snow geese be taken off an endangered species list.
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