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Why did The Pfennigs experiment included plain brown artificial snakes?
Wiki User
â 13y ago
im not sure if this is right but i think its because brown snakes were needed as a control.
Wiki User
â 13y ago
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What role did the brown artificial snakes have in the experiment?
The role of the brown artificial snakes is to see whether the contrast in coloration was necessary to see if predators attacks based on their color
What is pfenning's experiment?
A team of biologists designed a set of experiments to test a hypothesis that was suggested some time earlierThe hypothesis was mimics (like the flower fly) benefit because predators confuse them with the actual harmful species.This group of researchers, David and Karin Pfennig, along with one of their college students, tested the hypothesis by studying mimicry in snakes that live in North and South Carolina.A poisonous snake, the eastern coral snake, is marked by rings of red, yellow, and black. Predators rarely attack these snakes (brightly colored with distinctive patterns).A nonpoisonous snake, the scarlet kingsnake, mimics the ringed coloration of the coral snake.The reason kingsnakes look like coral snakes is because they repel predators. The hypothesis predicted that predators would attack snakes with the bright rings of red, yellow, & black less frequently than they would attack snakes without the warning coloration.To test the prediction, the researchers made hundreds of artificial snakes. The 2 types of artificial snakes were those with the red, yellow & black ring pattern of coral snakes and the snakes that were brown.The researchers places equal numbers of the 2 types of fake snakes in various sites throughtout North and South Carolina and after four weeks, they got the snaks and counted how many had been attacked.The experiment included snakes that were brown along with the ringed snakes because the contrast in coloration was necessary to see if predators attack snakes based on color.Of all the attacks on the snakes, 84% of them were on the brown snakes and 16% were on the snakes with colored rings. This experiment supported the hypothesis.
Is a Hopi rattlesnake a reptile?
Yes, all snakes, rattlesnakes included, are reptiles.
What will happen to the lizard if snakes went extinct?
Any food chain or food web that included snakes would be affected. The animals which the snakes preyed upon would no longer have that population control and could overrun their niche.
Why were the results of the mimicry study presented as the percent of attacks on king snakes in each area rather than the total number of attacks?
The mimicry study was presented as a percent of attacks in each area because the number of attacks varied between location. The kingsnake was attacked less in the areas where the kingsnake and coral snake overlapped because predators knew to stay away from snakes with that coloration. "The data fit the key prediction of the mimicry hypothesis. Compared to the brown artificial snakes, the ringed artificial snakes were attacked by predators less frequently only in field sites within the geographic range of the poisionous coral snakes." AP edition biology, eighth edition. Chapter 1 (page 21).
What does it mean when you dream of many snakes running around?
Snakes can represent many different things in dreams, from danger and betrayal to healing and regeneration. If the emotions experienced in this particular dream included fear or discomfort, the snakes most likely represent constantly changing or shifting problems that the dreamer perceives as threatening.
What countries don't have snakes?
Greenland, Iceland, New Zealand and Ireland all lack native snakes; however, some keep captive specimens in zoos and nature parks. Antarctica would also be included if it was a country.
Does there have to be enofe room in the snakes cage for her to attack?
No, one reason a snake would attack something (your hand included) is if it was in cramped quarters. Enough not enofe.
Do peacock eat snake?
yes they do rattlesnakes cobras like all the snakes eat peacocks except for garter snakes
What is the name of the house of snake?
Assuming you're referring to an artificial enclosure - it's a vivarium.
What are the ingredients in strawberry pop rocks?
Ingredients: Sugar, Lactose (Milk Sugar), Corn Syrup, Artificial Flavor, Artificial Color (Red No. 3), Processed with Carbon Dioxide.
What type of snakes are there?
There are many different familes of snakes. Pythons, boa constrictors, rat snakes, garters, grass snakes, flying snakes, rattlers, vipers, blind snakes, asps, wart snakes, sunbeam snakes, etc.
