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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
31 32Characteristics 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 Starter2. Practice3. Vocabulary
Table of Contents
Date Lecture/ Activity/ Lab Page1/9 Ecological Succession 23-241/10 Semester Exam Review 25-261/15 Cell Vocabulary 27-281/16 Ecosystems at School 29-301/17 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
31 32Characteristics 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
31 32Characteristics of Living Things