levels of life have systems of related parts 1. system organized of related parts – 2. celltissueorganorgan systemorganism example: 3. speciescommunityecosystembiosphere universe 4. ecosystem physical environment with – different species that interact with one another and with nonliving things Structure and function are related in biology 1. teeth have different structures and perform different functions (front teeth cut and back teeth grind) 2. heart muscle has different structure than arm muscle Organisms must maintain homeostasis to survive in diverse environments 1. Homeostasis the maintenance of constant – internal conditions in an organism 2. examples: D. Evolution explains the unity and diversity of life 1. Evolution the change in living things over – time 2. adaptation an inherited trait that gives an – advantage to individual organisms and is passed to future generations 3. All living things show both unity and diversity a. unity all living things use the same DNA – code b. no two living things have identical DNA Scientific Thinking and Processes Method 1. Observation scientist make observations and – examine previous research
levels of life have systems of related parts 1. system – organized of related parts 2. celltissueorganorgan systemorganism example: 3. speciescommunityecosystembiosphere universe 4. ecosystem – physical environment with different species that interact with one another and with nonliving things Structure and function are related in biology 1. teeth have different structures and perform different functions (front teeth cut and back teeth grind) 2. heart muscle has different structure than arm muscle Organisms must maintain homeostasis to survive in diverse environments 1. Homeostasis – the maintenance of constant internal conditions in an organism 2. examples: D. Evolution explains the unity and diversity of life 1. Evolution – the change in living things over time 2. adaptation – an inherited trait that gives an advantage to individual organisms and is passed to future generations 3. All living things show both unity and diversity a. unity – all living things use the same DNA code b. no two living things have identical DNA Scientific Thinking and Processes Method 1. Observation – scientist make observations and examine previous research
Biology-Unit%202%20Notes.docx