Energy Flow
The original source of energy for most ecosystems.
What is the sun?
The type of organism that begins a typical food chain.
What is a producer?
This trophic level contains producers.
What is the first trophic level?
The type of pyramid shows the amount of energy available at each trophic level.
What is an energy pyramid?
A close, long-term relationship between two different species that is not predation.
What is a symbiotic relationship?
This process allows producers to capture light energy and convert it into chemical energy.
What is photosynthesis?
The direction that an arrow point in a food chain should point.
What is from teh prey towards the predator?
This is another name for a primary consumer.
What is an omnivore?
In a typical energy pyramid, the location of the trophic level with the greatest amount of energy.
What is the bottom of the pyramid?
A type of symbiosis where both organisms benefit.
What is mutualism?
The percentage of energy is transferred from one trophic level to the next.
What is 10%?
The difference between a food chain and a food web.
What is showing one pathway of energy flow versus multiple interconnected pathways?
The trophic level of an organism that eats a rabbit, which eats grass.
What is the third trophic level?
(What is the secondary consumer?)
The amount of energy available to secondary consumers if producers contain 20,000 kcal.
What is 200 kcal?
The type of relationship where a tick feeds on the blood of a dog.
What is parasitism?
The amount of energy available to primary consumers if producers contain 50,000 kcal of energy.
What is 5,000 kcal?
The change in the frog population if the grasshopper population dramatically decreases in the following food web: Grass → Grasshopper → Frog → Snake.
What is the frog population would go down?
The trophic level of a hawk when it eats a snake that eats a frog that eats an insect that eats a plant.
What is fourth trophic level?
(What is a tertiary consumer?)
The reason why energy pyramids always have less energy at higher trophic levels.
What is most energy is used for metabolism or lost as heat?
The type of relationship described where a barnacle attaches to a whale to get transportation food, but the whale is generally unaffected.
What is commensalism?
The amount of energy available to tertiary consumers if producers contain 100,000 kcal of energy.
What is 100 kcal?
This likely happens to insect-eating birds and plant populations after pesticides kills most of the insects in an ecosystem.
What is the bird population goes down and the plant population goes up?
The reason why quaternary consumers are relatively rare compared with organisms at lower trophic levels.
What is very little energy remains by the time energy reaches the fourth or fifth trophic level, so ecosystems cannot support many organisms at that level?
The reason why ecosystems cannot support unlimited numbers of top predators.
What is because top predators receive only a small fraction of the original energy captured by producers, so there isn't enough energy to support large populations of them?
I benefit while my partner is harmed. I often live on or inside my host and obtain nutrients from it. Who am I?
What is a parasite?