FOOD CHAINS & WEBS
This organism makes its own food using sunlight.
What is a producer?
A relationship where both organisms benefit.
What is mutualism?
This is the largest population an environment can support.
What is carrying capacity?
Cutting down forests is called this.
What is deforestation?
Energy in ecosystems originally comes from this.
What is the Sun?
A food web shows this compared to a food chain.
What is multiple feeding relationships?
A tick feeding on a dog is this type of relationship.
What is parasitism?
Give one example of a limiting factor.
What is food, water, space, or shelter?
Pollution in water can harm ecosystems by doing this.
What is killing organisms or disrupting habitats?
Only about this percent of energy moves to the next trophic level.
What is 10%?
If a top predator is removed, this often happens to prey populations.
What is they increase?
One organism benefits and the other is unaffected.
What is commensalism?
A drought affects populations by limiting this.
What is water availability?
Predict the effect of building a city on a forest ecosystem.
What is habitat loss and decreased biodiversity?
This type of pyramid shows energy loss between levels.
What is an energy pyramid?
Organisms that eat both plants and animals are called this.
What are omnivores?
Clownfish and sea anemones are an example of this.
What is mutualism?
Density-dependent factors affect populations based on this.
What is population size?
Species introduced to a new area that cause harm are called this.
What are invasive species?
Organisms that break down dead matter are called this.
What are decomposers?
Predict what happens to grass if rabbits and foxes both decrease.
What is grass increases?
Predict what happens if a parasite population grows too large.
What is host population decreases?
Predict what happens when a population exceeds carrying capacity.
What is population decreases due to lack of resources?
Burning fossil fuels contributes to this global problem.
What is climate change?
Explain why there are fewer organisms at higher trophic levels.
What is less energy is available?