Side Questions:
Ch. 18-20 Principles of Ecology
Highlight:
What is ecology?
Headings
Vocabulary
Important info
What is Ecology?
•Ecology is the study of interactions between organisms and their environment.
1.
What are biotic
factors?
B. Abiotic factors
1. “________________” parts of the
environment
2. Can determine which species will
survive
*EX: rainfall, temperature, light, soil
What are abiotic
factors?
1.
2.
3.
What are the levels of
biological organization
from least complex to
most complex?
Biotic vs. Abiotic Factors
Biosphere – portion of the Earth ___________________________________ life
 Within the biosphere you have the following factors:
A. Biotic factors
1. All organisms _______________________________ the environment
2. The “___________________” things in the environment!
4.
Levels of Biological Organization
Species: Group of organisms that can breed and produce fertile offspring!
Populations:
a. A group of organisms of the ______________________ living together
b. Must _________________________ for resources
Community:
a. Several __________________________ that interact
b. Changes in one population will cause changes in the others
Ecosystem:
a. Interactions b/t populations and their _____________
b. 2 main types:
1. Terrestrial – ________________
2. Aquatic – fresh or salt water
Niche vs. Habitat
•Niche:
•The _______________________________ an organism plays in the environment
•Its “___________” in the community
What is a niche?
•Habitat :*Place where an organism ____________________________
* Habitat of the earthworm: ______________________
* Niche: To aerate (________________________) the soil.
Summary: 4 sentences
that summarized the
lecture