Biology: Exploring Life

Slides:



Advertisements
Similar presentations
Biology: Exploring Life
Advertisements

The Science of Life Biology bio = living or life -logy = the study of.
Chapter One The Scope of Biology.
THEMES IN THE STUDY OF BIOLOGY
CHAPTER 1-INTRODUCTION 1.1 – Levels of Organization B. EcosystemAll organisms + nonliving components C. CommunityAll organisms in an area D. Population.
BIOLOGY – EXPLORING LIFE
Ten Themes Unify The Study of Life.
Quiz #1 1. Which level of life includes all of the other levels in the list: organisms, cells, biosphere, molecules, and ecosystems? Explain your answer.
Unit 1 – Science Inquiry Biology BIOLOGY – what is it?  Biology is the study of anything that was living or once was living.
Chapters 1 &2 The Scope & Science of Biology Enduring Understandings : Biology explores life from the global to the microscopic scale Biology explores.
What is biology?  Bio means “life”  logy mean “study”  Life” emerges at the level of cells  Nature has levels of organization properties emerge at.
Invitation to Biology Chapter 1. Biology Scientific study of life Lays the foundation for asking basic questions about life and the natural world.
AP Biology What is Biology? How do we study it? What is Biology? How do we study it?
Studying Life Vodcast 1.3 Unit 1: Introduction to Biology.
Introductions Name: Educational background: Reason for taking this course: Personal:
Biology: Themes in the Study of Life. A Hierarchy of Biological Organization The study of life extends from the microscopic scale of molecules and cells.
The Science of Biology Chapter The Diversity of Life Archaea Bacteria ProtistaFungiPlantaeAnimalia Taxonomists classify organisms into 6 Kingdoms.
Biology: Exploring Life
Copyright © 2005 Pearson Education, Inc. Publishing as Benjamin Cummings PowerPoint Lectures for Biology: Concepts and Connections, Fifth Edition – Campbell,
Unit 1: the Science of Life Ch. 2: Features of Life & the Cell Ch. 30 Populations & Communities (selected sections)
Chapter 1 The Study of Life
Introductory Biology: Cellular Dr. Heather Townsend Chapter 1.
Copyright © 2005 Pearson Education, Inc. Publishing as Benjamin Cummings The Characteristics of Life and Overview of.
A View of Life Chapter 1. Learning Objective 1 What are the three basic themes of biology? What are the three basic themes of biology? 1. Evolution 2.
Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings PowerPoint Lectures for Biology: Concepts and Connections, Fifth Edition – Campbell,
INTRODUCTION TO BIOLOGY Chapter 1. PROCESS OF SCIENCE Two main scientific approaches Discovery science - describing nature Hypothesis-driven science -
BIOLOGY: Characteristics of Living Things. What is Biology? ology study of Bio life Biology: Study of life.
PowerPoint Lectures Campbell Biology: Concepts & Connections, Eighth Edition REECE TAYLOR SIMON DICKEY HOGAN Chapter 1 Lecture by Edward J. Zalisko Biology:
Chapter 1: Biology: Exploring Life What is Biology? The study of life or living organisms.
Copyright © 2009 Pearson Education, Inc. PowerPoint Lectures for Biology: Concepts & Connections, Sixth Edition Campbell, Reece, Taylor, Simon, and Dickey.
Intro to Biology Characteristics of Life Intro to Biology.
Is Fire Alive? 3 What is Biology?  Biology is the study of all living things  Living things are called organisms  Organisms include bacteria, protists,
Welcome to the 2015 – 2016 School Year! Mrs. Mollberg.
Chapter 1 The Study of Life
Chapter 1 The Science of Life.
Biology: Themes in the Study of Life
Study of Life Chapter 1 Themes
Concepts & Methods in Biology
BIOLOGY: Characteristics of Living Things
CHAPTER 1 Introduction: The Scientific Study of Life
Chapters 1 &2 The Scope & Science of Biology
Unit 1: Biology a view of Life Pgs 1-19
What Does it Mean to Be Alive?
Everyone is a Biologist: Studier of Life!
Unit 1 – Science Inquiry Biology.
Chapter One The Scope of Biology.
Introduction to Science and Exploring Life
Chapter 1 Human Biology is a Science.
A View of Life.
Chapter 1: Exploring Life
Biology: Exploring Life
Biology: Exploring Life
College Prep Biology Mr. Martino
Introduction to Biology
Introduction to Biology
Biology: Exploring Life
Introduction: Themes in the Study of Life
LIVING OR NON-LIVING???.
Biology : Principles of Biology I
Biology: Exploring Life
Unit 1 Nature of Science YOU MUST KNOW
Unit 1 – Science Inquiry Biology.
The Science of Biology.
Ch 1 – The Science of Life.
Introduction Chapter 1: Sections 1.1, 1.2, 1.3.
Biology Chapter 1.
Biology: Exploring Life
Chapter 1 Study of Life.
Biology: Exploring Life
BIOLOGY THE SCOPE OF LIFE.
Presentation transcript:

Biology: Exploring Life Chapter One Biology: Exploring Life

A Big-Billed Bird Rebounds! Main Idea: Brown pelicans are magnificent birds who’s interaction with humans almost lead to their extinction. Who? What? When? Where? Why? How?

1.1 Life’s levels of organization define the scope of biology.

Levels of Organization (Largest Smallest) Biosphere Ecosystem Community Population Organism Organ Systems Organs Tissues Cells Cell Organelles Molecules/Compounds Atoms

Levels of Organization (from most inclusive to least inclusive) Biosphere: All the environments on Earth that support life. Ecosystem: consists of all the organisms living in a particular area, as well as all the nonliving, physical components of the environment with which organisms interact, such as air soil, water, and sunlight. Community: the combination of all the different species (all living things) in an ecosystem.

Levels of Organization (cont’d) Population: an interacting group of individuals of one species. (Example: brown pelicans) Organism: an individual living thing. Organ System: several organs that work together. (Example: circulatory system, digestive) Organs: a group of tissues that work together. (Example: heart, kidney, ect.)

Levels of Organization (cont’d) Tissues: a group of similar cells that work to accomplish a specific function. (Example: heart tissue, muscle tissue, skin tissue, etc.) Cell: a unit of living matter separated from it’s environment by a boundary called a membrane. Organelle: structure that performs a specific task inside the cell. Molecule: a cluster of atoms held together by chemical bonds. Atom: the smallest particle of ordinary matter.

1.2 Living Organisms and their environments form interconnecting webs. Living and nonliving organisms in an ecosystem make up a complex web of relationships. Producers: plants and other photosynthetic organisms that create their own food. Photosynthesis occurs (chapter 6) Consumers: organisms that eat producers and other consumers. Cellular respiration occurs (chapter 6) Decomposers: transform dead matter into simple mineral nutrients that plants can use.

1.2 Living Organisms and their environments form interconnecting webs. Ecosystems include 2 major processes: 1) Recycling of chemical nutrients Decomposers break down nutrients in dead/decaying organisms and release them for reuse 2) Flow of energy through an ecosystem Sun → plants (producers) → consumers → heat energy

1.3 Cells are the structural and functional units of life. The cell is the lowest level of structure that can perform all activities required for life. Prokaryotic Cells: no membrane-bound organelles (nucleus), smaller and simpler; EX: bacteria Eukaryotic Cells: Larger, more complex, organelles; EX: all other cells (including us!!)

1.4 All forms of life have common features Order: Complex organization; made up of cells Regulation: maintain internal environment (homeostasis) Growth and development Use of Energy: take in energy and use it to perform life’s functions Response to the environment (stimuli) Reproduction Evolution: species change over time

1.5 The diversity of life can be grouped into 3 domains Bacteria = Eubacteria kingdom (common bacteria) Archaea = Archaebacteria kingdom (bacteria living in extreme environments) Eukarya = Protist, Fungi, Plant, and Animal kingdoms

1.7 Scientists use 2 main approaches to learn nature 1) Discovery Science - describing nature Inductive reasoning: Develop general principles from a large number of observations 2) Hypothesis-Based Science - Proposing and testing hypotheses Hypothesis: a possible explanation; a proposed answer; an educated guess; Must be testable Deductive reasoning: “If-then” reasoning Proper hypothesis: If a Biology student doesn’t study for a test, then that student will fail. – NO I, me, my, we, our

Develop questions (identify a problem) Hypothesis-based science is not a rigid set of steps, but a systematic way of solving scientific problems or understanding an observation (Scientific Method) Make observations Develop questions (identify a problem) Form a hypothesis to explain observations = Educated guess- statement, not question! Make predictions Test the hypothesis/predictions with an experiment Do the experiment, collect data and analyze the data and draw conclusions Does the data support your hypothesis? If not, check your experiment or reject hypothesis – you may need a new hypothesis

Controlled experiments Variable: a factor that can change Independent variable (manipulated variable): causes change in another variable (dependent variable Dependent variable (responding variable): changes in response to the independent variable Constant: a condition that does not change. Control group: a test system where all variables are identical to the experiment except the independent variable. Experimental group: contains the independent variable

Theory vs. Law Theory - A well tested explanation for a wide range of observations Supported by a large body of evidence Future evidence can cause a theory to change or be rejected Scientific Law – Rule of nature; describes an observed pattern in nature without attempting to explain it

1.9 Biology is connected to our lives in many ways Global warming, genetically engineered crops, endangered species, etc… Science Technology Society relationship is an important one