ANIMAL BEHAVIOR
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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because having an immediate response is an advantage when speed is necessary
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because they help animals find more food
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because they increase diversity in reproduction
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because they influence other adaptations to evolve
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Detailed explanation-1: -The term sign stimulus also known as a releaser, is the determining feature of a stimulus that produces a response. Sign stimuli are often found when observing a fixed action pattern (FAP) that is an innate behaviour with very little variance in the manner in which the actions are executed.
Detailed explanation-2: -Chemical signals (e.g., pheromones) serve as important releasers for the social insects: ants, bees, and termites. Many of these animals emit several different pheromones which elicit, for example, alarm behavior, mating behavior, and foraging behavior in other members of their species.
Detailed explanation-3: -If a female greylag goose’s egg rolls out of her nest, she will instinctively use her bill to push the egg back into the nest in a series of very stereotyped, predictable, movements. The sight of an egg outside the nest is the stimulus that triggers the retrieval behavior.
Detailed explanation-4: -sign stimulus (releaser) The essential feature of a stimulus, which is necessary to elicit a response. For example, a red belly (characteristic of courting male sticklebacks) is the sign stimulus necessary to provoke an attack from a rival male; even a very crude model fish is attacked if it has a red undersurface.