SAT Subject Test in Biology

The SAT Subject Test in Biology assesses students' understanding of biological concepts and principles.

Cell Structure and FunctionGenetics and HeredityPhotosynthesis and Cellular Respiration
Evolution and Natural SelectionEcology and EcosystemsHuman Body Systems
Biotechnology in MedicineConservation and Environmental ProtectionGenetic Testing and Personalized Medicine
Time Management and PacingProcess of Elimination
Cell Structure and F...Genetics and Heredit...Photosynthesis and C...Evolution and Natura...Ecology and Ecosyste...Human Body SystemsBiotechnology in Med...Conservation and Env...Genetic Testing and ...Time Management and ...Process of Eliminati...
Advanced Topics

Human Body Systems

The Amazing Human Machine

The human body is made up of many systems that work together to keep us alive and healthy.

Major Body Systems

  • Circulatory System: Moves blood, nutrients, and oxygen.
  • Respiratory System: Exchanges oxygen and carbon dioxide.
  • Digestive System: Breaks down food for energy.
  • Nervous System: Sends signals throughout the body.
  • Immune System: Fights infections and diseases.

System Interactions

These systems are interconnected. For example, the circulatory system moves nutrients from the digestive system and oxygen from the respiratory system to cells all over the body.

Everyday Relevance

Understanding body systems helps us make healthy choices and understand medical conditions.

Examples

  • The heart pumps blood around the body, delivering oxygen to organs.

  • The nervous system controls your ability to move, feel, and think.

In a Nutshell

Body systems work together to keep us alive, healthy, and active.

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Biotechnology in Medicine