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Download name: Lab 13 Animal Behavior Quiz 1. (1 pt) What is a pheromone
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name: Lab 13 Animal Behavior Quiz 1. (1 pt) What is a pheromone? A pheromone is a chemical that is excreted by one organism that is responded to by other members of that organism’s species 2. (1 pt) What is a behavior? A behavior is an action carried out in response to a stimulus. 3. (1pt) List the 3 steps used in any signaling system. • transmission • reception • response 4. (2 pt) Describe two ways that living in a group can reduce your risk of being eaten by a predator. Two things that reduce the risk of predation living in a group are the confusion effect and the dilution effect. The confusion effect works by making it harder to focus on catching one individual in a group making catching a prey more difficult for the predator. The dilution effect works by reducing the chance that an individual is eaten given that one prey in the group will be caught. Thus if a group of one is attacked there is a 100 percent chance that the one organism in that group is attacked. However in a group of 10 if a predator attacks an individual in that group, each individual only has a 10 percent chance of being attacked. 5. (1 pt) It is noon in Pullman and the sun is directly to the south. You observe a honey bee doing a waggle dance directly to the right (90 degrees from up). What direction is the bee telling the other members of the hive to go to find the food source? The bee is signaling that the food source is to the west of the hive. 6. (4 pts) You perform the following experiment with termite workers. You draw two strait lines on a piece of paper 15cm apart. One line was drawn with a blue colored pencil. The other line was drawn with a blue ink pen. You place 5 termite workers at the start of each line and record wether they followed the line. Write an null hypothesis and an alternative hypothesis for this experiment. • Null Hypothesis: There will be no difference between the two lines in how well the termites will follow the two lines. • Alternative Hypothesis: The termites will follow the line drawn with the ink pen more often than they will follow the line drawn with the colored pencil.