DO NOW!!! https://www.youtube.com/watch?v=juxLuo-sH6M

Introduction to Living Things Unit 1 Lesson 1

What characteristics do living things share? Living things may seem very different – they are alike in several ways. Share

The 7 Characteristics With a group investigate the 7 characteristics that you believe all living organisms share. Think about: What they are made of? What they do to survive? How do they interact with their environment?

7 Characteristics Living things: are made of cells respond to their environment maintain a stable internal environment (homeostasis) reproduce obtain and use energy grow and develop adapt to their environment

Make a story Book Create a story book with the 7 characteristics of living things!

HW Read Through Unit 1 Lesson 1 and underline all the important information!

7 Characteristics that all living things share! are made of cells respond to their environment maintain a stable internal environment (homeostasis) reproduce obtain and use energy grow and develop adapt to their environment

Cell - smallest structural and functional unit of life. All living things -made of one or more cells! Cell – membrane covered structure - contains all of the materials necessary for life. Microscopic

Cell membrane - boundary between the inside of the cell and environment outside.

Living things are made of cells! Unicellular organisms - only one cell. (Prokaryotes = Bacteria) Multicellular organisms - more than one cell. (Eukaryote = Animals & Plants) Multicellular organisms - trillions of cells that perform specialized functions. Cells  Tissues  Organs  Organ Systems  Organism

Living things respond to their environment. Ability to sense & respond to change in environment Stimulus - change that affects the activity of an organism Examples – Hunger, Tiredness, Fear, Light, Chemicals, Sounds, etc.

Living things maintain a stabile internal environment (homeostasis). Chemical reactions - keep an organism alive and can happen only when conditions are exactly right.

Living things reproduce. Reproduction – creation of new organisms Parents pass on traits through copied DNA to offspring DNA (deoxyribonucleic acid) - genetic material that controls the structure and function of cells. Sexual or asexual

DNA Offspring have similar traits and characteristics of parents Received DNA (23 chromosomes from each parent)

Life reproduces.

Homework Read pages 6 – 8 and answer questions #5 – 9.

DO NOW!!! With a partner discuss how a living thing might adapt to their environment! Think of a specific animal and their adaptation! Example: A chameleon will camouflage itself to its surrounds to avoid being found and eater by predators. https://www.youtube.com/watch?v=wNqiclBUxdY

Sexual Reproduction 2 parents - produce offspring that share the characteristics of both parents Offspring - receives part of its DNA from each parent. Animals and plants

Asexual Reproduction Binary Fission 1 parent - produces offspring that are identical to the parent Offspring - receives an exact copy of the parent’s DNA. Most unicellular organisms, some plants and animals Binary Fission

Budding New organism grows on parent until it separates.

break down food move materials in and out of cells move and interact

Obtain & Use Energy Producers – Plants make their own food – Photosynthesis – energy from sun - Autotrophs Consumers - eat other organisms to gain energy -Plants or animals – Heterotrophs Decomposers - break down decaying material to gain energy

https://www.youtube.com/watch?v=4fYLEhqYGIU

Unicellular - gets larger, divides, and forms two new cells Multicellular - # of cells in body increases - organism gets bigger.

Living Things Adapt to their Environment Traits – give an organism an advantage in a certain environment As environment changes – organism must change in order to survive

Discussion

Homework Complete Questions 10 through 14 on Pages 9 through 11.

DO NOW!!! Complete the Visual Summary on Page 12 in your textbook.

Survival Needs: Water Essential for life. Cells - mostly made of water, and most chemical reactions in cells require water.

Survival Needs: Gases Air – Oxygen, Nitrogen, Hydrogen, etc. – Needed to survive Cells - use oxygen in air to release energy from food (Glucose). Plants - use the carbon dioxide in air to make food.

Food & Shelter Food - energy and nutrients - carbohydrates, lipids, and proteins. Examples of food that has these? Shelter - protects from harm and contains the other necessities of life.

Producers – Consumers Producers (plants and algae) – create their own food – Photosynthesis - Autotrophs Consumers - eat other organisms for food - Heterotroph

Decomposers Decomposers - break down dead organisms or wastes to get food Return nutrients to soil

Activity Taking a closer look at decomposers. https://www.youtube.com/watch?v=Z6V0a_7N1Mw Observe an earth worm and make calculated observations.

Earthworm Questions How many hearts does an earth worm have? If you cut an earth worm in half do both sides live? Do earthworms give birth to live young? Do earthworms have lungs? Why are earthworms important for the earth?

Earthworms

South African Earthworm Largest earthworm every found was in south Africa. It was 22 feet long (6.7 meters long).

Homework Complete the Unit 1 Lesson 1 Review on Page 13