1. Mind Stretcher 9/1/17 Name 3 types of relationships between organisms.
Predation (Predator/Prey)
Competition
Symbiosis
Coevolution

2. Concept Map for Ch. 18-3 Write your name on it!
Open the textbook to Ch. 18 section 3 (page 491)
Listen to the audio and follow along
We will pause after each main topic (red title)
GOAL: Complete “Competition & 3 types of Symbiosis”

3. Carrying capacity
Carrying capacity- the largest population that an environment can support at a time
Example- when a population grows too large, individuals most leave or die off. The population has to return to a size the environment can support

4. Limiting Factor
Sources so scare that it limits the size of a population
Example- food, water, space (The environment contains a limited amount of these resouces.

5. Competition
When two or more individuals or populations try to use the same resource.
Example- elks compete for grass
Example between populations- different species of trees fight for sun

6. Predator/Prey Predator/Prey relationship
Predator adaptations- speed, ambush prey, and camouflage
Prey adaptations- speed (run away), stay in groups, camouflage, warning coloration, and defensive chemicals

7. Coevolution
The evolution of two species in close association to each other
Example- bat and flower- bat changed with the flower over millions of years