HSC Biology 2nd Paper Note 12th Chapter Animal behavior

HSC Biology 2nd Paper Note 12th Chapter Animal behavior. Why do praying mantises display a unique mating system, called sexual cannibalism, where a member of a male-female pair kills and consumes the other during courtship or copulation? At the end of every summer, why do more than 100 million monarch butterflies sweep across North America to overwinter further south in California and Mexico? Animal behavior is the study of these and other questions about why animals behave the way they do.

HSC Biology 2nd Paper Note 12th Chapter Animal behavior

HSC Biology 2nd Paper Note 12th Chapter Animal behavior

HSC Biology 2nd Paper Note 12th Chapter Animal behavior

HSC Biology 2nd Paper Note 12th Chapter Animal behavior

HSC Biology 2nd Paper Note 12th Chapter Animal behavior

The study of animal behavior begins with understanding how an animal’s physiology and anatomy are integrated with its behavior. Both external and internal stimuli prompt behaviors — external information (e.g., threats from other animals, sounds, smells) or weather and internal information (e.g., hunger, fear). Understanding how genes and the environment come together to shape animal behavior is also an important underpinning of the field. Genes capture the evolutionary responses of prior populations to selection on behavior. Environmental flexibility gives animals the opportunity to adjust to changes during their own lifetime.

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HSC Biology 2nd Paper Note 12th Chapter Animal behavior