Characteristics of Living Things 1/17/13 Starter: 1/17/13 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 3132 Characteristics of Living Things Number from 1 to 7

January 17, 2013 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.Vocabulary

DateLecture/ Activity/ Lab Page 1/9 Ecological Succession /10 Semester Exam Review /15 Cell Vocabulary /16 Ecosystems at School /17 Characteristics of Living things 31-32

Characteristics of Living Things 1/17/13 Starter: 1/17/13 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 3132 Characteristics of Living Things Number from 1 to 7

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 1/17/13 Starter: 1/17/13 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 3132 Characteristics of Living Things