human body
5.L.1.1 Explain why some organisms are capable of surviving as a single cell while others require many cells that are specialized to survive.
5.L.1.2 Compare the major systems of the human body in terms of their functions necessary for life.
5.L.3.1 Explain why organisms differ from or are similar to their parents based on the characteristics of the organism.
5.L.3.2 Give examples of likenesses that are inherited and some that are not.
Cells
Cells: basic building block of all living things
Unicellular Organism: an organism made of one cell that performs all life processes; doesn't need other cells to survive
Multicellular Organism: an organism many of many specialized cells; specialized cells work together to help the organism survive
How are unicellular organisms and multicellular organisms similar? How are they different?
Why are some organisms made of just one cell, but others are made of many different cells?
Genes & Traits
Genes: part of DNA that is passed from parent to offspring; determines your inherited traits
Traits: physical characteristics of an organism; ex: eye color, fur color, height, ear shape
Inherited Trait: a characteristic that is passed down from parents to offspring
Learned Behavior: a characteristic or behavior that is gained through experience
Inherited Traits vs Learned Behaviors
Which traits have you inherited from your parents? Which behaviors have you learned through experience?
Digestive system
The digestive system breaks down food into usable energy for your body.
Circulatory system
The circulatory system carries blood, oxygen, and nutrients throughout your body.
Overview of the circulatory system
The Heart
Veins & Arteries
Respiratory system
The respiratory system brings in oxygen and gets rid of carbon dioxide.
Parts of the respiratory system
Overview of the respiratory system
skeletal system
The skeletal system protects your organs, provides structure and support, helps you move, and produces blood cells.
The human skeleton is made up of 206 bones!
Overview of the skeletal system.
muscular system
The muscular system helps your body move.
Some of the major muscles in the body.
Overview of the muscular system
Muscles often work in pairs to help the body move
nervous system
The nervous system controls your body's movements, thoughts, and emotions.
The parts of the nervous system
Your brain performs many different functions for your body!
Overview of the nervous system