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Understanding Competition Among Organisms in Ecosystems

In today's lesson, we will explore how organisms compete within ecosystems for limited resources. We'll introduce essential vocabulary related to competition, including concepts like population density and limiting factors that influence growth. Key limiting factors, such as deforestation, predation, and natural disasters, affect population dynamics. We'll also engage in an activity to gauge your understanding before diving deeper into the subject using our science textbooks. Prepare to understand the intricate relationships that shape ecosystems and how competition plays a vital role.

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Understanding Competition Among Organisms in Ecosystems

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Presentation Transcript

  1. Science Lesson 3

  2. Today’s Objective • YOU will be able to describe how organisms compete within an ecosystem.

  3. Let’s start with the introduction of new vocabulary

  4. Competition: • The struggle among organisms for limited resources in an area.

  5. Population Density: • A measure of a population’s size in relation to the size of the area in which the population lives.

  6. Limiting Factors: • A factor that causes population growth to decrease.

  7. When looking at competition in an ecosystem, limiting factors can make a huge difference. In the next few slides, we are going to look at some of those factors.

  8. Deforestation: • To cut down and clear away the trees and forests. • This includes over-fishing and over-hunting

  9. Predation: • The capturing of prey as a means of maintaining life.

  10. Natural Disasters: • Hurricane, tornado, flood, severe drought • Equally devastating to populations regardless of size

  11. Scale of Understanding • Using your scale of understanding, please point the number showing your level of understanding answering the following question: • *How well can you describe how organisms compete within an ecosystem*

  12. Now, please get out your science text books and turn to page 88.

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