1. Warm-Up (3/6)
Explain, either in a representation or verbally, how light activating a light-sensing neuron in the eye stimulates adrenaline release when a person sees a bear.

2. UNIT 5B
Thursday’s Picture

3. Inter-Organismal Communication (Biotic Interactions)
UNIT 5C
Inter-Organismal Communication (Biotic Interactions)

4. Inter-Organismal Communication (Biotic Interactions)
UNIT 5C
Inter-Organismal Communication (Biotic Interactions)
Organisms exchange information (communicate) using signals.
Signals lead to internal responses.

5. Inter-Organismal Communication (Biotic Interactions)
UNIT 5C
Inter-Organismal Communication (Biotic Interactions)
Organisms exchange information (communicate) using signals.
Will not have the territory to raise pups
Signals lead to internal responses.
The ability to signal to other organisms results in differential reproductive success.
Example: marking territory provides exclusive breeding grounds
Will have the territory to raise pups

6. Inter-Organismal Communication (Biotic Interactions)
UNIT 5C
Inter-Organismal Communication (Biotic Interactions)
Organisms exchange information (communicate) using signals.
Signals lead to internal responses.
The ability to signal to other organisms results in differential reproductive success.
Example: marking territory provides exclusive breeding grounds

7. Inter-Organismal Communication (Biotic Interactions)
UNIT 5C
Inter-Organismal Communication (Biotic Interactions)
Organisms exchange information (communicate) using signals.
Signals lead to internal responses.
The ability to signal to other organisms results in differential reproductive success.
Example: marking territory provides exclusive breeding grounds
Signals can be:
visual
audible
tactile
electrical
chemical

8. UNIT 5C
CTQ #1
In an experiment, ecologists collected urine samples of regions visited by male white-tail deer during mating season. In addition, the scientists observed the number of male deer which visited the regions in a given time frame. The average results are plotted below.
Describe why the concentration of male deer decreased as concentration of urine increased, and describe why the number stayed constant after 250 L/acre. (LO 3.40)

9. UNIT 5C
CTQ #2
Create a representation to show how a single bee can promote swarming behavior in other bees. Indicate how the bee can adjust the intensity of swarming behavior (for example, two before-and-after models). (LO 3.41)

10. Closure
Describe THREE ways by which organisms exchange information. (LO 3.42)