Unit 1 Lesson 1 Introduction to Living Things Big Idea: The types and characteristics of organisms change over time. Unit 1 Lesson 1 Introduction to Living Things Essential Question: What are living things? Copyright © Houghton Mifflin Harcourt Publishing Company

Share and Share Alike What characteristics do living things share? P 6 Unit 1 Lesson 1 Introduction to Living Things Share and Share Alike What characteristics do living things share? Living things that exist on Earth may seem very different, but they are alike in several ways. There are five characteristics that all living things share. * Made of cells, * Respond to their environment, * Reproduce, * Use Energy, * Grow & Mature

What Characteristics do Living Things Share? As you read p 6-9, fill in details under each characteristic Made of Cells Respond to Environment Reproduce Use Energy Grow and Mature

What characteristics do living things share? P 6 Unit 1 Lesson 1 Introduction to Living Things What characteristics do living things share? Living Things are Made of Cells made of one or more cells. smallest organism that can perform life functions. contains all of the materials necessary for life.

What characteristics do living things share? P 6 Unit 1 Lesson 1 Introduction to Living Things What characteristics do living things share? Unicellular organisms are made up of only one cell. Multicellular organisms are made up of more than one cell. Some multicellular organisms have trillions of cells that usually perform specialized functions. Visualize it #5

What characteristics do living things share? P 7 Unit 1 Lesson 1 Introduction to Living Things What characteristics do living things share? Living Things Respond to Their Environment Have the ability to sense a change and respond to that change A change that affects the activity of an organism is called a stimulus. A stimulus can be gravity, light, sound, a chemical, hunger, or anything else that causes an organism to respond in some way.

Stasis – standing still P 7 Unit 1 Lesson 1 Introduction to Living Things What characteristics do living things share? Living Things Respond to Their Environment Conditions inside an organism’s body must stay relatively constant. Chemical reactions keep an organism alive and can happen only when conditions are exactly right. An organism must maintain stable internal conditions to survive. This maintenance is called homeostasis. Visualize it #6-7 Homoios – similar Stasis – standing still

What characteristics do living things share? P 8 Unit 1 Lesson 1 Introduction to Living Things What characteristics do living things share? Living Things Reproduce Organisms make other organisms They pass copies of all or part of their DNA to their offspring. DNA, or deoxyribonucleic acid, is the genetic material that controls the structure and function of cells. DNA is found in the cells of all living things. Offspring share characteristics with their parents because they receive DNA from their parents.

What characteristics do living things share? P 8 Unit 1 Lesson 1 Introduction to Living Things What characteristics do living things share? Living Things Reproduce Two Parents Offspring share characteristics of both parents Offspring revives DNA from both parents Most Plants and Animals One Parent Offspring are IDENTICAL to the parent Exact copy of parent DNA Most Unicellular organisms Some plants/animals

What characteristics do living things share? Unit 1 Lesson 1 Introduction to Living Things What characteristics do living things share? Examples of Asexual Reproduction Visualize it #9

What characteristics do living things share? P 9 Unit 1 Lesson 1 Introduction to Living Things What characteristics do living things share? Living Things Use Energy need energy to carry out the activities of life. Energy allows organisms to make or break down food, move materials into and out of cells, and build cells. Energy also allows organisms to move and to interact with each other.

What characteristics do living things share? P 9 Unit 1 Lesson 1 Introduction to Living Things What characteristics do living things share? Living Things Use Energy convert energy from the sun into food, which they store in their cells until they need to use it. must eat other organisms to gain energy. break down decaying material

What characteristics do living things share? P 9 Unit 1 Lesson 1 Introduction to Living Things What characteristics do living things share? Living Things Grow and Mature All living things grow during some period of their lives. unicellular organism: gets larger and then divides, forming two cells. multicellular organism grows: the number of cells in its body increases, and the organism gets bigger. They also develop, change and mature Infancy  Childhood  adolescence  Adult Pass through different stages of development Young Tadpole  older Tadpole  Frog Egg  Larva  Caterpillar  Pupa  Butterfly # 10 & Visualize it #11

more than 1 cell = multicellular Specialized Functions Made of Cells Smallest unit of life 1 cell = unicellular more than 1 cell = multicellular Specialized Functions Respond to Environment stimulus --> response internal and external stimuli maintain homeostasis - stability Reproduce pass copies of DNA to offspring Sexual = 2 parents share characteristics of both parents Asexual = 1 parent binary fision budding exact copy of parent DNA Use Energy some make own food Photosynthesis Producers some orgamisms eat other orgainisms (plant or animal) Consumers fungi break down dead or decaying organisms Decomposers Grow and Mature unicellular - grows larger and divides into 2 Infant --> childhood --> adult metamorphosis egg --> larva --> pupa --> adult

Stayin’ Alive What do living things need to survive? P 10 Unit 1 Lesson 1 Introduction to Living Things Stayin’ Alive What do living things need to survive? Almost all organisms need water, air, food, and a place to live in order to survive.

What do living things NEED for survival? p 10 - add details (bubbles) around each characteristic Needs for survival A place to live food air Water

How do Living things get food? p 11 - add details and examples below each How do Living things get food? Producers Consumers Decomposers

Organisms often compete for food, water, and the best place to live. Unit 1 Lesson 1 Introduction to Living Things What do living things need to survive? Cells are mostly made of water, and most chemical reactions in cells require water. Air contains gases that organisms need to survive. Cells use oxygen in air to release energy from food. Organisms such as plants use the carbon dioxide in air to make food. A place to live protects organisms from harm and contains the other necessities of life. Food provides organisms with the energy and nutrients that they need to survive. Organisms often compete for food, water, and the best place to live.

How do living things get food? P 11 Unit 1 Lesson 1 Introduction to Living Things How do living things get food? Food gives living things the energy and nutrients they need to perform life processes: allows cells to divide and allows the organism to grow and develop Nutrients include carbohydrates, lipids, and proteins. Fruits, vegetables, and grains provide carbohydrates. Nuts and fats provide lipids. Meats, nuts, and vegetables provide protein.

How do living things get food? P 11 Unit 1 Lesson 1 Introduction to Living Things How do living things get food? Producers, such as plants and algae, make their own food. Plants and algae use energy from the sun to make food. Photosynthesis Consumers, such as deer, mice, and eagles, eat other organisms. Decomposers, such as worms and fungi, break down dead organisms or wastes to get food. They return nutrients that plants can use to the soil.

Visualize it 13 & 14 Organism Classification Way of getting food Water They get water from food that adult eagles bring to them. Air Food Place to live Young eagles breathe air. Adult eagles bring food like fish to the young eagles. Adult eagles build a nest high in trees to protect young eagles from animal that could harm them. Organism Classification Way of getting food Barred Owl Consumer Eats mice and other small animals Earthworm Red Squirrel Fern Decomposer Breaks down dead/decaying material Consumer Eats seeds from plants Producer Makes food - photosynthesis

Stimulus Producers Asexual Nutrients Unit 1 Lesson 1 Introduction to Living Things VISUAL SUMMARY Stimulus Sunlight is an example of ___ Binary fission is an example of ________________ reproduction Asexual Producers Plants are ___ Nutrients Decomposers return _______________ to the environment Producers need light from the sun to produce food. Consumers eat producers for energy How do some producers and consumers each rely on light from the sun?

How do organisms respond to their environment?

FIRE Similarities Life

Food Web Activity Sit or stand in a circle Start a ball of string at the blue heron Have each person grasp the string as it is passed to them, and continuing to hold onto it Toss/Pass the string to someone with a creature card that eats or is eaten by theirs until all have had a turn.