Food Webs and Chains
In a food web, these are organisms called that produce their own food through photosynthesis
What are producers?
As energy is transferred from one trophic level to the next, this percentage of energy is passed along
What is 10%
This type of ecosystem receives less than 25cm of water per year.
What is the desert?
Two species that are rarely found in the same ecosystem due to competition is an example of this
What is competitive exclusion?
This term describes all the living things on Earth
What is the biosphere?
In the food chain Algae → Zooplankton → Small Fishes → Squid → Shark, this organism is the primary consumer.
What are zooplankton?
In a trophic pyramid, producers are located here
What is the bottom?
A swamp ecosystem is a wetland characterized primarily by this environmental feature.
What are trees?
A clownfish living in an anemone where the anemone provides shelter but neither benefits nor is harmed is an example of this relationship
What is commensalism?
A sand particle (which of course is not alive) is an example of this type of factor in an ecosystem
What is an abiotic factor?
Organisms that eat both producers and consumers are called this.
What are omnivores?
If a secondary consumer needs 2,000 calories per day, how many calories of producers must be available to support it
WHat is 200,000 Calories
In a swamp, trees develop this type of root system to access water near the surface.
What are shallow roots?
Lichen, made of algae and fungus where both organisms benefit, is an example of this
What is mutualism?
The term ecologists use to describe where an organism lives and what it does there.
What is a niche?
In a food web with grass, rabbit and wolf, this/these is/are the producers
What is grass?
Organisms at this trophic level are most likely to be omnivores,
What are secondary consumers?
What is a bog?
A parasitic relationship where an organism causes harm (like an amoeba causing diarrhea) is an example of this
What is parasitism?
This is an approximation used to study individuals or ecosystems.
What is a model?
An organism that eats every other kind of organism in any food chain is called this (hint - they eat dead things among other stuff).
What is a detritovore?
If an eagle (top predator), raccoon (secondary consumer), and family of mice (primary consumers) each need 500 calories, which removes the most calories from the ecosystem
What is the eagle?
Only the top layer of soil thaws even in the summer in this biome
What is the arctic tundra?
Prairie dogs have an important role in grassland ecosystems by providing habitat, aerating soil, fertilizing grass, and serving as food for predators. They are called this type of species
What is a keystone species?
An ecosystem with many different species is more likely to have this quality, allowing it to bounce back from disturbances
What is resilience?