8th Grade: Ecology Basics 🌳

Interactive Lesson • $\text{Levels}$ of $\text{Organization}$ • $\text{Energy}$ $\text{Flow}$

Studying the Web of Life 🕸️

  **$\text{Ecology}$** is the scientific study of how living things ($\text{organisms}$) interact with each other and with their surrounding environment. It explains how nature is organized into different levels, from small groups to the entire planet.

 
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Levels of $\text{Ecological}$ $\text{Organization}$ 🪜

The study of $\text{ecology}$ is organized into ascending levels of complexity:

 

1. Individual (Organism)

 

A single living being (e.g., one fox 🦊).

 

2. Population

 

A group of the **same species** living in the same area (e.g., all the foxes in a forest).

 

3. Community

 

All the **different populations** (plants, animals, fungi) that live together in an area (e.g., foxes, rabbits, trees, and grass).

 

4. Ecosystem

 

The **Community** ($\text{all living things}$) **PLUS** the **$\text{Abiotic}$** ($\text{non-living}$) $\text{factors}$ (e.g., foxes, rocks, water, and air).

Video: The $\text{Food}$ $\text{Chain}$ ($\text{Energy}$ $\text{Flow}$) 🔗

Watch how energy moves from the sun to $\text{producers}$ and $\text{consumers}$ in an $\text{ecosystem}$.

 
 
 

Practice Problems ($\text{Biotic}$ vs. $\text{Abiotic}$)

Click whether the factor is **$\text{Biotic}$** ($\text{living}$) or **$\text{Abiotic}$** ($\text{non-living}$).

 
   
1) A deer drinking from a river.
   
               
   
 
 
   
2) The amount of sunlight hitting the forest floor.
   
               
   
 
 
   
3) Bacteria decomposing a dead log.
   
               
   
 
 
   
4) The temperature of the water in a pond.
   
               
   
 

⚡ $\text{Trophic}$ $\text{Level}$ Challenge!

Click on the organisms in the correct order to form a basic **$\text{Food}$ $\text{Chain}$** (starting from $\text{Producer}$).

 
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Start by clicking the $\text{Producer}$!
 
     
 
 

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