Muscular System
Skeletal System
Circulatory/Cardiovascular System
Respiratory System
Nervous System
Digestive/Excretory System
Organs
Genes and Traits
Heredity (Inherited Traits and Learned [Acquired] Behaviors)
Inherited Traits/Instincts and Acquired (Learned) Traits or Behaviors:
- Inherited traits are physical characteristics and behaviors that an organism gets from its parents. It is born with them.
- Eye color, hair color, freckles, skin color and dimples are all inherited traits in humans. Other animals and plants also have inherited traits…some might include fur color, type of feet or body covering, flower color, or type of leaves.
- Instincts are inherited behaviors. Instincts do not have to be taught.
- Breathing, blinking, hibernation for some animals, migration for some animals, sleeping patterns, roots growing down in the ground, and plants growing toward the light are all examples of instincts.