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Animal Structure (Chapter 40 - Principals of Animal Form and Function…
Animal Structure
Chapter 40 - Principals of Animal Form and Function
Feedback and Internal Environments
Feedback Control
Alterations
Homeostasis
Maintaining an internal balance
Constantly Regulating; Body Temp, Blood pH, Blood Glucose
Regulator, Internal mechanisms control internal changes
Conformer: External mechanisms control internal changes
Control centers (Endocrine System) sends a response to a stimuli, and may alter it depending on positive or negative feedback
Homeostatic Processes
Form and Function at all levels of organization
Coordination and Control
The entire organism's body must work in synergy
Tissues and Organs must work in concert to perform functions
Endocrine and Nervous systems are responsible for responses to stimuli
Hormones and impulses are broadcast throughout the body to command it to react
Evolution of size and shape
Physical Laws affect evolution
Water is more dense and vicious than air
Body shape has to coincide with environment or it becomes a disadvantage
Animal Body plans and size will fit with physical laws
Exchange with environment
Exchanges must happen between the animal and the environment
Nutrients, Waste Products, and Gases
Exchanges occur across the plasma membrane
All cells in in an organism must be able to exchange with the environment
Hierarchical organization of body plans
Animals are composed of multiple levels of complex cells and systems
Tissues, Organs, Organ Systems, All Systems Together
Connective Tissues (Epithelial, Connective, Muscle, and Nervous) help bring everything together
Energy Requirements