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The Red Scare targeted only foreign-born radicals.

By the early 1930s, confidence in laissez-faire economics declined.

In the discussion board, you talked about some ideas on what would make a plant evolve to look black.  Why don’t you think modern plants here on Earth haven’t evolved the ability to use green light in addition to the other wavelengths?

Imagine that the Calvin cycle of photosynthesis and the Krebs cycle of cellular respiration were merged into a single metabolic pathway inside one organelle (we’ll call it the “metaboplast”). In this system, the stroma and matrix are fused into one compartment, and the enzymes of both cycles share the same pool of substrates. Design a theoretical model of how this “metaboplast” could function.  In your response, consider: 1) How carbon atoms would move through the combined cycle, and whether intermediates like RuBP and oxaloacetate could coexist or compete. 2) How ATP and NADPH/NADH requirements would be balanced, and whether one cycle could drive the other. 3) How reducing power (NADPH vs. NADH vs. FADH₂) would be allocated, and whether electron transport chains would need to be modified. 4) How membranes and compartments would need to be arranged to prevent conflicting gradients or futile cycles. 5) Evaluate whether such a hybrid organelle could theoretically sustain both anabolic (glucose synthesis) and catabolic (glucose breakdown) processes without self-canceling.

Compare and contrast the reactions of photosynthesis and cellular respiration.  Be sure to include the following information: a) definitions b) reactants and products for both reactions c) the overall equation for both reactions d) the organelle and its parts where each reaction takes place e) other important information f) at least one reason why each of these processes is important in Biology.

Imagine you are playing the role of one molecule of ATP. Starting at the very beginning, evaulate and describe the path that this ATP would need to pass through in order to move from where it is produced in a chloroplast into the cytoplasm of the cell. (Be sure to include specific membranes and other structures as you complete the path). 

Species A and B are two species of marine invertebrate animal. They are stationary and found in shallow water along the margins of lakes. Researchers examine the range of depths each species uses when they are growing on their own and when they are grown together. Their findings are shown below (dashed lines are each species growing on its own; solid lines are when they occur together. Larger numbers indicate deeper water. Based on the results shown in the graph, we can conclude that [a] is the stronger competitor because [b].

When do we typically see exponential growth in a population?

In a very deep temperate lake, turnover happens every spring and fall. As a result of climate change, turnover is decreasing. What impact would this be predicted to have on net primary productivity (NPP) in the lake?

Prairie dogs show altruistic behavior. A researcher finds that female prairie dogs tend to give alarm calls more often than males. Alarm calls put the individual making the call at risk, but benefit other prairie dogs in the area. Hamilton’s rule (Br > c) helps to explain altruistic behavior. Based on Hamilton’s rule, which of the following explanations is the most likely explanation for female prairie dogs giving alarm calls more often than males?