Characteristics of Living Things 1/23/15 Starter: 1/23/15 Practice: List what things you believe are characteristics of living things Application/Connection: Paste Notes here when Done Exit: Where do these plant parts fit in the levels of organization? Guard cell, xylem, leaf, plant Characteristics of Living Things What do you think makes you a living creature?

January 23, 2015 AGENDA 7.12 F recognize that according to cell theory al organisms are composed of cells and cells carry on similar functions such as extracting energy from food to sustain life. 1 Starter 2.Practice 3.Ws

12/16 Light Years /17 Formation of the Universe /18 Big Bang /19 Early Astronomers and Light year Writing /7 Waves and the EM Spectrum /8 Wavestown EM Writing and Quiz Galaxies Counting Galaxies Lives of Stars Characteristics of Stars H-R Diagram /7 Characteristics of Living things Table of Contents

DateLecture/ Activity/ Lab Page 12/17 Groundwater Lab /7 Characteristics of Living things

Characteristics of Living Things

What is biology? The study of living things All living things share certain characteristics

1. Made of 1 or more cells A. Unicellular (one cell) - ex. Bacteria B. Multicellular (many cells) - ex. Animals, plants

2. Need energy to survive A. Autotrophs - get energy from sun B. Heterotrophs - get energy by consuming nutrients from their environment

3. Respond to stimuli in their environment A. Stimuli - factors in the environment that living things react to (ex. Light, temperature, sound, etc.)

4. All living things reproduce A. Sexual - two sex cells required (sperm and egg) B. Asexual - only one parent cell is needed

5. Grow and develop A. Each cell divides to make new cells (cell division) – results in growth B. Some cells become specialized and perform different jobs than others (differentiation)

6. Maintain homeostasis A. Homeostasis – a relatively stable internal environment (within a certain range) - (ex. Human body temperature (approximately 98.6 degrees F))

7. Have a universal genetic code A. All living things have DNA B. DNA passes on genetic information from one generation to the next

8. Adapt and evolve over time A. Evolution - gradual change in a population of organisms over time Individuals DO NOT evolve

Characteristics of Living Things 1/23/15 Starter: 1/23/15 Practice: List what things you believe are characteristics of living things Application/Connection: Paste Notes here when Done Exit: Where do these plant parts fit in the levels of organization? Guard cell, xylem, leaf, plant Characteristics of Living Things What do you think makes you a living creature?