A diet is rich in chemical energy, but not all of this energy, is available to t

Question

A diet is rich in chemical energy, but not all of this energy, is available to the animal. How is energy partitioned in a diet? How does specific dynamic action benefit an animal? How do animals use neurosensory systems to detect food in a complex environment? What role might genetic variation play in the evolution and development of bird beak shape variation? Summarize the basic organization of the vertebrate GI tract. What is the function of each compartment? Discuss the variation in the nature of fermentation chambers.

Explanation / Answer

1. Unlike green plants animals cannot capture solar energy and combine with basic elements to provide nutrients. Energy is not a nutrient but a product of absorption and metabolism.

2. Specific dynamic action is used to refer to increased metabolic expenditure that occurs in postprandial animals.

3. Animals has chemoreceptors which sense environmental molecules which enables them to select the corrwlect food in correct time. Neurosensory systems are used by animals to find food that matches dietary needs.

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