1. Organisms and Their Environments
Spring 2018

2. Organisms and Their Populations
Habitat
An area where an organism lives
Includes both biotic and abiotic factors

3. Organisms and Their Habitat
Niche
All strategies and adaptations a species uses in its environment including:
Type of food an organism eats
How it obtains food and shelter
When and how a species reproduces and survives
**No two species can share the same niche in the same habitat.**

4. Organisms and Their Habitat
Predators-
Organisms that seek out and eat other organisms.
Prey
Organisms that are eaten.
Symbiosis-
Any relationship in which two species live closely together.

5. Symbiosis Type: Mutualism
Description-
both species benefit from a relationship
Example:
flowers and insects
rhino and a tick bird

6. Symbiosis Type: Commensalism
Description:
One organism benefits and the other is neither helped nor harmed.
Examples:
Trees and moss
Whales and barnacles

7. Symbiosis Type: Parasitism
Description:
One organism lives on or in an organism and harms it.
Example:
Dogs and ticks
Human and mosquito