1. Introducing

2. Ecosystem Biotic Factors Abiotic Factors
includes all abiotic and biotic factors in one particular environment
Biotic Factors
Abiotic Factors
the living parts of an ecosystem
the nonliving parts of an ecosystem

3. Biotic Factors Bio include plants, animals, fungi, microorganisms
bio(s), bio(t) (G) root life
biotechnology
biomechanics
biosphere
biofeedback
biostatistics
biography
biotic
biology

4. Examples of Biotic Factors

5. a, an (G) prefix not, without
Abiotic Factors A
include air, water, soil, temperature, wind, source of energy (usually sun)
a, an (G) prefix not, without
abiotic
amusia
amoral
atoxic

6. Examples of Abiotic Factors

7. Examples of Ecosystems
Coral Reef in Belize
Mountains in Colorado
Arizona Desert

8. The Sun
Definition: A flaming ball of hot gas that gives off heat and energy.
Characteristics: abiotic, hot, gives off light energy, star, helps plants produce food
Illustration: Draw a picture of the sun

9. Producer Definition: An organism that can make it’s own food.
Characteristics: autotroph-can carry out photosynthesis, biotic, source of all the food in an ecosystem
Examples: grass, oak tree, flowers, other plants
Illustration: Draw a picture of a tree

10. Consumer
Definition: An organism that obtains energy by feeding on other organisms.
Characteristics:
heterotroph- depend on producers for food and energy
Herbivores- eat only plants
Carnivores- eat only meat
Omnivores- eats both plants and animals

11. Consumer Examples: Humans, sharks, snakes, lions, hawks Illustration:
Draw a picture of a consumer

12. Decomposer
Definition: Organisms that break down wastes and dead organisms and return the raw materials to the environment.
Characteristics:
Return simple molecules to the environment
Remove waste and dead organisms

13. Decomposer Examples: Bacteria and fungi, such as mold and mushrooms
Illustration: Draw a picture of a mushroom

14. Scavenger
Definition- a carnivore that feeds on the bodies of dead organisms.
Examples: Vultures, catfish, ants

15. Ecosystems Biotic Abiotic
do not necessarily have clear boundaries due to biotic and abiotic changes
can change daily as things move from one ecosystem to another
Biotic
Abiotic
migration, seed dispersal
flood, erosion, drought

16. Biotic Factors interact with each other in complex ways
parasitism mutualism competition
such as
also interact with abiotic factors in the ecosystem
dependent upon water, minerals, temperature, light

18. Biome
a major regional or global biotic community, a super ecosystem, defined chiefly by the dominant forms of plant life and the prevailing climate

19. Major Biomes of the World
desert
grassland
tropical rain forest
deciduous forest
coniferous forest
tundra
ocean

20. Levels of Organization
biome
group of organs working together
one individual living thing
group of different kinds of tissues working together
all organisms of the same kind living in one area
large region with typical plants and animals that includes several ecosystems
all living and nonliving things interacting within a certain area
all interacting populations in an ecosystem
group of similar cells organized to work together
smallest unit of living things
ecosystem
community
population
organism
organ system
organ
tissue
cell

21. Bibliography
Arms. (1996). Environmental Science. Orlando,Florida: Holt, Rinehart and Winston, Inc.
McLaren, James E, and Rotundo, Lisa (1985). Heath Biology. D. C. Heath and Company.
The American Heritage Dictionary of the English Language, Third Edition. (1992). Houghton Mifflin Company.