Cells and Their Environment Chapter 4. 4.1 Passive Transport Part 1: Diffusion Remember: Living things need to maintain homeostasis (responds to external.
Tugas Anfisman Print
Plant cells
1 What is Life? Life can be defined as an organized genetic unit capable of metabolism, reproduction, and evolution.
© Fall 2005, Pflugerville ISD, 7th Grade 7th Grade Science .
HUMAN RESPONSES TO THE ENVIRONMENT Two systems to be studied: 1.Nervous system 2.Endocrine system.
C ELL M EMBRANES. GUIDING QUESTION: HOW DOES A CELL MEMBRANE HELP A CELL STAY ALIVE? Homeostasis- A stable internal condition inside of a living organism.
Organisms = Living things How do we know that something is a living thing?
Chapter 4 Cells and their Environment Mrs. Cook Biology.
Characteristics of Living Things
Safety review. CHAPTER 1 THE SCIENCE OF LIFE Lets play a game… Am I alive? How can you tell?
Chapter 1 The Science of Life. Chapter 1: you should be able to… Describe the importance of Biology in society. List and understand the characteristics.
