Please enable JavaScript.
Coggle requires JavaScript to display documents.
exam 2, chapter 40 - Coggle Diagram
exam 2
chapter 41
-
-
-
How do evolutionary adaptations of vertebrate digestive systems correlate with different dietary strategies?
Vertebrate digestive systems have evolved to suit various dietary strategies. here are some of those strategies.
-
Digestive Tract Length: Herbivores and omnivores typically have longer alimentary canals than carnivores.
Fermentation Chambers: Many herbivores possess fermentation chambers where mutualistic microorganisms help digest cellulose, a major component of plant cell walls.
Expandable Stomachs: Carnivores often have large, expandable stomachs to accommodate large meals after infrequent hunting successes.
Ruminants: Animals like deer and cattle have complex stomachs for digesting tough plant materials through a process called rumination.
How do feedback circuits regulate digestion, energy storage, and appetite?
Feedback circuits play a crucial role in regulating digestion, energy storage, and appetite by ensuring that the body's needs are met efficiently.
Digestion Regulation: As food enters different compartments, it triggers the secretion of digestive juices
Energy Storage: Hormones such as insulin and glucagon regulate glucose availability by controlling glycogen synthesis and breakdown
Appetite Control: Hormones like leptin, insulin, and ghrelin regulate appetite by affecting the brain's satiety center.
chapter 40
what energy requirements are related to animal size, activity, and environment?
Smaller animals, like mice, have higher metabolic rates per gram, requiring more oxygen and energy relative to their size compared to larger animals like elephants.
Environmental factors, such as temperature, influence energy expenditure. This effects more of ectotherms animals because the rely on external heat
Endotherms use metabolic heat for thermoregulation, while ectotherms, like snakes, rely on external heat sources.
Benefits of ectotherms like snakes, don't need much food since their energy sources are not from food. But things like squares and mice need to eat all the time for their energy.
-
-
-
-