Limiting factors can be abiotic (non-living) or biotic (living). Can you think of three examples; abiotic or biotic? Let's figure this out... A tree would not be able to grow or reach its full height if we took away, sunlight, changed the temperature, the soil didn't have the right nutrients, or receive enough water. All of those limiting resources are abiotic. We can see clearly that one tree is healthy and the other tree is sickly. We can also see that both trees have space, sunlight and must be getting the same amount of water, so what's the problem?? The sickly tree has a biotic problem, it has been overrun by woodpeckers. Those pesky birds have pounded hundreds of holes through its bark and the tree could not withstand the assault. Can you tell which limiting factor is affecting an ecosystem? Let's give it a try: Did you guess drought? Not enough water? You are right! Is this abiotic or biotic? Limiting factor? Is this abiotic or biotic? Limiting factor? Abiotic or biotic? Limiting factor? Abiotic or biotic? Limiting factor? Abiotic or biotic?
How did you do? Here are the answers: 1. The drought picture: this is abiotic, no rain for too long. 2. Flooding river: The limiting factor is too much rain and runoff of water: abiotic factor. 3. Eagle fishing is predator-prey limiting factor: biotic factor 4. Bulldozer: biotic factor. Humans clearing land limits the growth of brush, forests and grasses. 5. The Road: this is a little of both, the road is the limiting factor and its abiotic, but the humans that built it is a biotic factor. Good job! I hope you passed this little quiz with flying colors!
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Mrs. TaylorI love science! Everything about the world is interesting and never boring. I love to study plants, animals, insects, and people. My favorite subjects are my students who are the most unique organisms on the planet! Categories |