Slide 1 Respiratory System Gas exchange Slide 2 Why do we breathe? Think of all the reasons why we need a respiratory system. WORKTOGETHERWORKTOGETHER Slide 3 Warning: terminology!…

Slide 1 Urinary System Water control and nitrogen disposal Slide 2 Homeostasis The urinary system maintains homeostasis in several ways: Removal of urea (nitrogenous waste)…

Slide 1 Plant Reproduction Slide 2 Is a seed alive? Is a fruit alive? Answer as completely as you can on your own paper. (Hang on to your paper until the end of class.) WORKTOGETHERWORKTOGETHER…

Slide 1 Musculo-Skeletal System Muscles + Bones = Locomotion Slide 2 Muscles Slide 3 When you work out frequently, your muscles get larger. What do you think is happening…

Slide 1 Digestive System Obtaining nutrients Slide 2 Nutrition Slide 3 Energy Body cells need energy to run cell processes. Animals obtain chemical energy from food. Energy…

Slide 1 Nervous System and Senses Slide 2 Neural Activity Slide 3 The Neuron Which direction does a signal travel down a neuron? What do you think a “signal” is? How…

Slide 1 Enzymes A cell’s toolbox (Ch 6.4) Slide 2 Enzymes are: 1.Proteins 2.Carbohydrates 3.Lipids 4.Nucleic acids 5.Depends on the enzyme Slide 3 progress of reaction…

Slide 1 Human Interaction Chapter 12 Slide 2 “Sustainability” is a popular idea these days. What does “sustainability” in the ecosystem mean? What does “sustainability”…

Slide 1 Energy Flow in the Life of a Cell Slide 2 Which of these supplies our cells with energy for cell metabolism? caffeine sugar oxygen water carbon dioxide other (explain)…

Slide 1 Biodiversity Sections 18.4. 16.4, and 30.1 Slide 2 The word “diversity” is used in many contexts. What is “genetic diversity” within a species? What is meant…