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Understanding the Systems of Living Organisms and Their Interconnections

This text explores the essential systems within living organisms, detailing how specialized cells form tissues, organs, and systems that work cohesively. It highlights the roles of various organ systems including the nervous, endocrine, skeletal, muscular, urinary, integumentary, immune, respiratory, circulatory, and digestive systems. Homeostasis is emphasized as a critical process that maintains stable internal conditions through negative feedback mechanisms. Each system’s function is linked to others, showcasing the complex interdependencies that sustain life and enable organisms to thrive.

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Understanding the Systems of Living Organisms and Their Interconnections

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  1. AMOCTOBSO & Systems pg. 264 - 267

  2. AMOCTOBSO • Animals are made up of specialized cells working together as systems Cells Tissues Organs Body systems Organism

  3. AMOCTOBSO • Systems of systems make up whole organisms... Organelles Atoms Cells Molecules Body/Organ Systems Organs Tissues Organism

  4. Connections among body systems • Organ systems that coordinate communication • Nervous system • detects and respondsto ex/internal stimuli • Endocrine system • secretes hormoneswhich affect development andreproduction

  5. Connections among body systems • Organ systems that support and move the body • Skeletal system • protects organs andsupports tissues • Muscular system • necessary for movement

  6. Connections among body systems • Organ systems that protect the body • Urinary system • excretes waste & keeps blood pressure balanced

  7. Connections among body systems • Organ systems that protect the body • Integumentary system • physical barriers for protection

  8. Connections among body systems • Organ systems that protect the body • Immune system • protects from infection

  9. Connections among body systems • Organ system that procreates • Reproductive system • makes subsequent generations

  10. The Big 3... • Organ systems that acquire energy • Respiratory system • exchanges O2 and CO2 • Circulatory system • Transports substances • Digestive system • breaks down food

  11. Homeostasis • The body MUST maintain a stable internal state • We call this process “homeostasis” This example shows how negative feedback regulates room temperature. In negative feedback, sensors detect a change and relay this to a control centre, which reverses the change and restores balance.

  12. Body Worlds...

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