Consider a population of sticklebacks in a large lake undergoing pollution remediation. The remediation is effective in improving water quality and clarity. This could potentially cause the number of bony plates on sticklebacks to evolve. Which of the following answers best identifies the conditions under which NO natural selection would occur?

Suppose you have four species of lizard and you are interested in how leg length will change in a single generation of evolution under directional selection. Given the following parameters, which lizard do you predict will change the most in one generation? Species A: Heritability: 0.5, selection differential: 1.2 Species B: Heritability: 0.4, selection differential: -1.9 Species C: Heritability: 0.9, selection differential: -0.67 Species D: Heritability: 0.1, selection differential 3.2 Species A Species B Species C Species D

Is natural selection only a negative process that removes nonadapted and lesser adapted forms? Explain your answer.

A polar bear is leaving the ice caps because they are melting. The polar bear enters a wooded area with limited snow. Describe how natural selection would affect the polar bear's relationship with its ecological surroundings.

Based upon your activities in this lab, would you say that natural selection selects for characteristics that are favorable for the organism's current habitat or for the best overall adaptation for most habitats likely to be inhabited in the future?

How would you apply this in a Lamarckian explanation? Tiger Moths (Bertholdia trigona) produce high pitched ultrasonic clicking (at a rate of 4500 clicks/sec) when they hear the echolocation calls of bats (bats eat moths). As a result, the bat's sonar is jammed and the Tiger Moth escapes without being caught, killed, and eaten. Please use your knowledge of Evolution by Natural Selection to explain the process by which this remarkable anti-predator defense evolved in Tiger Moths. Please use your Knowledge of Evolution by Natural Selection to explain the process by which this remarkable anti-predator defense evolved in Tiger Moths.