You Learn That a Mars Lander Has Retrieved a Bacterial

question 44

Multiple Choice

You learn that a Mars lander has retrieved a bacterial sample from the polar ice caps.To determine how the Mars bacteria replicate their DNA, you obtain a sample of these bacteria and perform the same kind of experiment that Meselson and Stahl did.Based on the following equilibrium density gradient centrifugation results, what type of replication would you propose for these new bacteria?

• A)Conservative
• B)Semiconservative
• C)Dispersive
• D)Semiconservative or dispersive
• E)Conservative or dispersive

Understand the concept of economic profits and losses in perfectly competitive industries.

Comprehend the reasons and conditions under which firms enter or exit an industry.

Identify how shifts in demand and supply affect market equilibrium and firms' economic profits in the short and long run.

Recognize the characteristics and implications of increasing-cost, decreasing-cost, and constant-cost industries on the industry's supply curve and market prices.