Herbivore interactions - PowerPoint PPT Presentation

Community Ecology

Community Ecology. Chapter 20 How do populations interact?. 20.1 Species Interactions. Standards covered: . B- 6.1 – Explain how the interrelationships among organisms generate stability within ecosystems? B-6.3 – Illustrate the process of succession in ecosystems. Species Interaction.

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Community Ecology

Community Ecology. Species Interactions. Communities are interacting populations of many species. There are five types of close interactions (symbioses) that help to determine the nature of communities: Predation Parasitism Competition Mutualism Commensalism. Predation.

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Plant Evolution

Plant Evolution. Plant Evolution. Evolved from green algae (450 mya) Both have chlorophyll, store energy as starch, DNA similarities Green algae ancestor Multicellular body Cells w/ channels to communicate Reproduce w/ sperm &amp; egg Early plants Low growth (nonvascular). Land Adaptations.

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681 views • 9 slides

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