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Presentation transcript:

Review On your whiteboard: Redraw the diagram to show the potential effect on the realized niches of Species 1, 2, and 3 if a predator of Species 3 is introduced into the habitat.

What is Predation? The process by which a predator hunts, kills, and consumes prey Video Clip

Population Cycles Predation causes cycles in predatory and prey population sizes

What are some defenses prey organisms have evolved over time? Brainstorm! What are some defenses prey organisms have evolved over time? Work with your partner Write your ideas on the whiteboard

MIMICRY Mimicry is the case in which one species looks similar to another species. 1. Batesian mimicry in which one non-poisonous species mimics another poisonous species. 2. Mullerian mimicry occurs when two poisonous species evolve to look like each other.

MULLERIAN BATESIAN Viceroy Monarch

Camouflage Blend in to hide from predators….or to BE a predator!

What is Herbivory? An organism feeding on a plant

What are some defenses plants have evolved over time? Brainstorm! What are some defenses plants have evolved over time? Work with your partner Write your ideas on the whiteboard

Thorns, Spikes, or Hair

Chemicals Video Clip

summary SPECIES A SPECIES B Predation + - One benefits & other harmed Herbivory + - One benefits & other harmed