Reference no: EM133307625

When cockroaches are attacked by a toad, they turn and run away. A roach has wind sensors for detecting the puff of air created by the abrupt movement of an attacking predator. These sensors are concentrated on its cerci, two thin projecting appendages at the end of its abdomen. One cercus points slightly to the right, and the other to the left. Use what you know about moth orientation to bat cries to suggest how this simple system might provide the information needed to orient the roach so that it turns away from the toad, instead of toward it, stops turning when the toad is directly behind it, and then runs in a straight path away from the toad. (3 points) Then, describe an experiment that would allow you to test your hypothesis. (3 points) What outcome of this experiment would support your hypothesis? (2 points) What outcome would fail to support it?

Some (but not all) starlings line their nests with foliage from wild carrot (Queen Anne's Lace), a plant that contains natural insecticidal chemicals. Nests containing such plants fledge a larger number of chicks than do nests without such plant "decoration."

Given this information, how could you test the idea that the use of wild carrot foliage is a primarily learned (or primarily inherited) behavior? Describe a study in which you test these hypotheses. What outcome of your study would support the idea that foliage decorating of nests was inherited? What outcome would support the idea that such behavior was learned?

By far, one of the most dangerous predators these monkeys have is the marshall eagle. This aerial predator is fast and strikes without warning. At the sight of an eagle, vervets make a particular call, and everyone heads deep into the branches of trees, where the eagle is reluctant to follow out of concern for potential damage to its wings.

Infant vervets, however, will make the aerial predator alarm call for just about anything that comes from above-a dropped twig, or a leave shaken down by another monkey overhead. Nevertheless, mothers generally look towards their infants when such a call is made, even when it is made "inappropriately."

1) Describe the two views of infant development in your own words;

2) tell me how each point of view would interpret vervet infant alarm calls to dropped twigs;

3) tell me what you would have to know to support each point of view; and

4) tell me a personal view view, (1 pt) defending it logically, and by using the data that you have available in the text of this question