BSC 101 Helms Week 1 Lecture Notes 8/21
BSC 101 Helms Week 1 Lecture Notes 8/21 BSC 101
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This 2 page Class Notes was uploaded by Daniel Hemenway on Saturday August 22, 2015. The Class Notes belongs to BSC 101 at Illinois State University taught by Dr. Helms in Summer 2015. Since its upload, it has received 167 views. For similar materials see Concepts in Biology in Biological Sciences at Illinois State University.
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Date Created: 08/22/15
BSC 101 Helms 821 Lettered Bullets Coursepack material Chapter 1 Learning Objectives List and describe the six shared characteristics of life Explain how organisms are systems of complex interactions at all levels of hierarchy Describe how the unity and diversity of life are explained by evolution Describe the process of science including how scientists use evidence to answer questions Distinguish between opinion prediction hypothesis theory and law 12 Organisms Share Many of the Same Characteristics A Coursepack Notetaking Guides Page 4 Possible answers because there are more options 1 The two organisms essentially have the same atomic makeup with small differences in order of relevance in the organism 2 They both have the same molecular structure proteins lipids 3 The whale and bacterium can reproduce sexually but the bacterium can reproduce asexually as well Characteristics that all living things share Respond to environment Live in hierarchy Reproduce Obtain and use energy Must be homeostatic Homeostasis maintaining a constant something internally while environmentalexternal changes are occurring Example sweating to maintain body temperature Hierarchy of life each level builds from the one before itsmallest to largest Macromolecules bond of atoms Cells singular level in hierarchy that works as an adaptable living system Tissue cells working together Organ two or more tissues working together to form a common func on Organ System several organs working together BSC 101 Helms 821 Organism a living thing that s made up of cells tissues organs and organ systems Population group of similar organisms of the same species Community many populations all living in one area Ecosystem abiotic factors nonliving factors combined with communities Biosphere all ecosystems put together A Coursepack Notetaking Guides Page 6 Producers algae and phytoplankton do more than plants Photosynthesis The process producers use to convert energy from the sun into chemical energy sugar Consumers and Decomposers Consumers Count on producers for chemical energy obtain it by consuming the producers Decomposers Break down both dead consumers and waste products to recycle the nutrients to be used again by producers Cellular Respiration The process in which organisms break down certain nutrients to create ATP ATP Energy within cells as a result of cellular respiration