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Abiotic Factors of the Tropical Rainforests Video

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  • 0:03 Biotic vs. Abiotic Factors
  • 2:02 Biotic and Abiotic…
  • 3:17 Tropical Abiotic…
  • 4:04 Lesson Summary
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Lesson Transcript
Instructor: Ebony Potts

Ebony has taught middle and high school physical science, life science & biology. She's also been an assistant principal and has a doctorate in educational administration.

Every environment contains what are called biotic and abiotic factors. In this lesson you'll learn the definition and importance of abiotic factors. You'll also view some examples of abiotic factors that are present in the tropical rainforest.

Biotic vs. Abiotic Factors

Imagine that you're an explorer. You're sent deep into a tropical rainforest on a mission to find and identify very specific objects for your country's king. You have all of your protective gear, tools, and a team of explorers to assist you. Most importantly, you have your instructions from the king on what to bring back from your journey.

Once you make your way deep into the forest, you open up your instructions from the king. The instructions state that you are to bring back four abiotic factors from the rainforest. You ask your fellow explorers, ''What are abiotic factors?'' One of your fellow explorers, Keesha, begins to explain.

Keesha says, ''There are living and non-living things everywhere. Living things all have certain characteristics in common, such as the ability to reproduce. They all react to their environment, have a need for water, and require energy.'' She's saying that living things are also referred to as biotic factors.

The group nods as Keesha explains. One explorer, April, states that she sees a biotic factor right now, as she points to a toucan flying through the trees. Kevin, another explorer, states that he is leaning on a biotic factor, as he pushes himself off of the bark of a tree.

You say, ''That's a great explanation, Keesha. However, the king asked us to also bring back four abiotic factors. What's an abiotic factor?'' Keesha replies, ''Well, it's the exact opposite of a biotic factor.'' She's saying that an abiotic factor is an object that doesn't display the characteristics of a living thing, so it's a non-living thing. You, Kevin, Keesha, and April begin to think about some of the non-living, abiotic factors found around you.

You shout, ''Rainwater!'', Keesha yells, ''Soil!'', April shouts, ''Rocks!''', and Kevin says, ''Sunlight!''

Biotic and Abiotic Factor Relationships

Congratulations! You and your fellow explorers have discovered some examples of biotic and abiotic factors. So how are these two factors related? Well, biotic factors depend upon the abiotic factors in their environment for survival.

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