Unit 6: Living Organisms January 22 - February 4

Tuesday, January 22 Objective: Analyze the cellular (multi vs uni) structure of living organisms. Do Now: Analyze the pictures below. What characteristics make the organisms alive?

Unicellular Organisms Composed of only one cell (single-celled) Small in size Simple structure (Prokaryotes) No internal organs or cell membranes Examples: bacteria, yeast, amoeba, paramecium

Unicellular Organisms

Multicellular Organisms Many-celled (millions of cells) Larger in size Complex structure - internal organs (Eukaryotes) Cells work together to keep an organism alive Examples: plants, animals, and human beings

Multicellular Organisms

Create a Venn Diagram to Compare & Contrast Unicellular and Multicellular Organisms

Cell Theory Scientists http://www.youtube.com/watch?v=dscY_2QQbKU Cell Thoery Song http://www.youtube.com/watch?v=KuJqqiATlqw

January 24, 2013 Objective: Analyze the characteristics of living things. Do Now: Describe at least 2 differences between unicellular and multicellular organisms.

Characteristics of All Living Things List and describe the characteristics of living things described in each video (You should have two lists) At the end of the video we will compare and contrast your two lists

Monday, January 28 Objective:Describe the characteristics and needs of living organisms. Do Now: What does a living organism need to survive?

Characteristics - Cellular Structure Unicellular - one cell Multicellular - many cells

Characteristics - Reproduction Asexual Reproduction All genetic material comes from the parent organism Types Budding - Offspring grows out the body of the parent Binary fission - Divide in half Sporulation - Division into four or more daughter cells Vegetative Propagation - New plant grows from parts of parent plant

Characteristics - Reproduction Sexual Reproduction Each of 2 parent organisms contribute half of the offspring's genetic makeup Internal vs External Fertilization Internal - Fertilization takes place inside the female (most land animals) External - Egg and sperm unite outside of the body

Characteristics - Growth & Development Increase in size and become more complex Development Changes an organism goes through as it grows Examples: Tadpole to frog Egg to caterpillar to butterfly

Characteristics - Energy Gain energy from food and/or sunlight Animals Herbivore - eats only plants Carnivore - eats animals Omnivore - eats both plants and animals Plants use photosynthesis Converting light energy to chemical energy that can be used as fuel Use energy to make food, break down food, move materials into and out of cells, and building cells

Characteristics - Environmental Response Action taken by an organism to react to a change in the environment Examples: Plants grow toward light Pull your hand from stove so you don't get burned Worm retreats into burrow when touched

Characteristics - Adaptations Features that help an organism survive in their environment Examples Fish have gills Desert plants have waxy leaves

Needs Energy Food Water Rivers, lakes, puddles, groundwater, or food

Needs 4. Temperature (Homeostasis) Maintain a specific temperature Endothermic - warm blooded Body temperature maintained by metabolic conversion of food to heat Exothermic - cold blooded Body temperature determined by surroundings Regulate heat Fur, body fat, moves out the sun, sweat

Needs 5. Gas Exchange Respiration - requires oxygen and produces carbon dioxide Lungs - Oxygen from air Gills - Oxygen from water (dissolved in water) Plants - require carbon dioxide (for photosynthesis) and produce oxygen

Needs 6. Living Space Light or dark? Temperature Needed resources Water, air, food Competition Limited resources increase competition

Tuesday, January 29 Objective: Classify living organisms. Do Now: What are the 6 characteristics of living organisms? Assignment: Red Textbook: Read pages 22-26 & Answer questions 1-6 on page 26

Wednesday, January 30 Objective: Analyze classification of living organisms. Do Now: Why do we classify "things"? (You can describe anything: clothes, cars, animals, writing utensils) Remember complete sentences with a sentence starter!

5 Kingdoms "Handy" Classification Draw a hand or trace your hand inside your notebook

(Green) Thumb - Plants Chlorophyll - makes food for plants Two main divisions: Vascular - can live far from water because of roots, stems, & leaves Nonvascular - came first

Index finger (#1) - Monera 1st form of life Mostly one-celled organisms Prokaryotic - no nucleus

Pinky Finger - Protists Very small - most unicellular 3 main groups: Protozoans Algae Slime molds

Ring finger - Fungi (Fun guy:) Larger finger - some multicellular Nonmotile - doesn't move Saprophytic - live off dead things

Middle (largest) finger - Animals (When used inappropriately "the bird") Largest kingdom both physical size & variety

5 Kingdoms "Handy" Classification