1. What does the prefix Bio mean?
WarmUP 1/21 page 156
What does the prefix Bio mean?

2. Organisms and the Environment
Page 157

3. develop a strategy to separate the different aspects of this environment into 2 different categories
Pg.158

4. Pg.158
Living and Non-Living

5. Is living or was once living
Pg.158
Biotic
Abiotic
Is living or was once living
Has never lived -

6. Pg. 159
BIOTIC
ABIOTIC

7. · Whale 
· Clock 
· Water 
· Fish 
· Paper 
· Glass 
· Aluminum 
· Wooden Ruler 
· Sand
· Clouds 
· Corpse 
· Snail 
· Steak 
· Pork Chops 
· Salad 
· Bread 
· Plant 
· Hair
Finger Nails 
· Pipe 
· Cotton Fabric 
· Wool 
· Gold 
· Plastic 
· Grapes 
· Air 
· Paper

8. Warm-Up
IN YOUR NOTEBOOK!
Write the question & your answer
What is the difference between something that is living and something that is non-living?

9. Characteristics of Living Things

10. Characteristics of Living Organisms
Pg. 160
Characteristics of Living Organisms

11. All things considered to be alive have what characteristics in common?
Make a list of reasons why you think the following organisms are considered “alive”.

22. Characteristics of Living Things
Made of Cells
unicellular vs.. multicellular
Red Blood cells
Onion skin epidermal cells
Human cheek cells

23. Characteristics of Living Things
2. Grows and develops
Increase in cell size and/or number
Includes: development, aging, death
Differentiation – cell specialization for a certain job

24. Characteristics of Living Things
3. Obtains & uses Energy
Metabolism (sum of all chemical reactions)
Heterotroph (other feeding)
vs. autotroph (self-feeding)

25. Characteristics of Living Things
4. Reproduces two kinds of reproduction: - asexual – takes one to make more - sexual – takes two

26. Characteristics of Living Things
5. Responds to the Environment a. Movement – internal or external b. Irritability - ability to respond to a stimulus Examples of stimuli : sight, sound, touch, pressure, temperature, chemicals, color, light, other? c. Adaptability

27. Characteristics of Living Things
6. Ability to adapt (Evolution)
Evolution - gradual change in a population of organisms over time
Individuals DO NOT evolve

28. Biotic vs. Abiotic
Page 161

29. Ecosystem:
made up of biotic and abiotic factors interacting with each other.

30. Biotic Factors the living things in the ecosystem. Examples:
Plants, animals, fungi, protists and bacteria

31. not alive, nonliving factors that affect living organisms.  
Examples:
temperature, soil, light, aspect, atmospheric gases present, sunlight, wind, wind patterns, precipitation, habitat, season, cloud cover, altitude and location of the ecosystem.
Abiotic Factors

32. Biotic and abiotic factors are interrelated.

33. but Abiotic factors don’t need biotic factors
Biotic factors cannot exist without the abiotic factors.

34. Biotic Factors
From the tiniest bacteria to the largest mammal, all need abiotic factors in order to survive.
They need air to breath and light to photosynthesize, for example.

35. Abiotic Factors
The seasons, cloud cover, altitude and aspect and location of the ecosystem will determine how much sunlight plants receive and therefore will govern photosynthesis.

36. The Impact of Changing Factors
If a single factor is changed, perhaps by pollution or natural phenomenon, the whole system could be altered. For example, humans can alter environments through farming or irrigating. While we usually cannot see what we are doing to various ecosystems, the impact is being felt all over. For example, acid rain in certain regions has resulted in the decline of fish population.