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Parts of the Digestive System
The vertebrate digestive system is designed to facilitate the transformation of food matter into the…
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Vertebrate Digestive Systems
Vertebrates have evolved more complex digestive systems to adapt to their dietary needs. Some animals…
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Invertebrate Digestive Systems
Animals have evolved different types of digestive systems to aid in the digestion of the…
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Animal Nutrition and the Digestive System
Figure 15.1. For humans, fruits and vegetables are important in maintaining a balanced diet. (credit:…
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Neural Control of Thermoregulation
The nervous system is important to thermoregulation, as illustrated in Figure 14.23. The processes of homeostasis and…
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Endotherms and Ectotherms
Animals can be divided into two groups: some maintain a constant body temperature in the…
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Negative Feedback Mechanisms
Any homeostatic process that changes the direction of the stimulus is a negative feedback loop. It…
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Nervous Tissues
Nervous tissues are made of cells specialized to receive and transmit electrical impulses from specific…
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Muscle Tissues
There are three types of muscle in animal bodies: smooth, skeletal, and cardiac. They differ…
