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A. Why do you suppose it took so long for ethologists to focus on the possibility that cultural transmission was an important force in animals? Can you imagine any biases - scientific, ideological, and so on - that might be responsible for this?
B. Imagine that adults in some population of monkeys appeared to pick up new innovations (for example, potato washing, stone play) from observing others. How might you disentangle vertical, horizontal, and oblique cultural transmission as possible explanatory forces?
Activation of T cells requires that antigens be presented from antigen-presenting cells, not simply by exposure to the antigen in solution. What biological rationale may underlie this requirement - consider both from the perspective of how this can a..
Explain how an enzyme can speed up an exergonic reaction. Can an enzyme cause an endergonic reaction to occur?
Which of the statements best describes the shape of its teeth? How many teeth does it have in the premaxilla.
Propose a hypothesis to explain the current decline in Songbird numbers. Design an experiment that could test your hypothesis.
If you wanted to make a 0.5M solution of MgSO4, how many grams of MgSO4 would you need? Assume the volume of the solution is one liter. Show your work.
Assume you decide to make a by placing the promoter region from the Trp operon upstream of the coding region for the enzymes responsible for lactose metabolism.
What attributes must these alleles possess for them still to be present. How must the interests of competing groups be balanced.
Sarah, a twenty year old female premed student is rushed into the emergency room with complaints of fainting, seizures, fever, a headache and weakness.
Provide a reason why it would be advantageous for eukaryotic cells to evolve elaborate internal membranes systems that allow them to import substances from the outside?
Jean is 45 years old and fifty pounds overweight. For the last three weeks, Jean has experienced severe right upper gastric pain immediately after eating.
The female I-1 and her mate, male I-2, had four children, one of whom has albinism. What is the probability that they could have had a total of four children
Assume that a sample of red blood cells at a concentration of 2.69 x 106 cells/ml is serially diluted 1/10 three times and then serially diluted 1/2 two times.
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