Ecosystems
The living parts of an ecosystem
What are the biotic factors?
Every food chain/food web begins with the ______________
What are the producers?
While energy flows through an ecosystem in one direction, matter and nutrients are ______________
What is recycled?
______________ succession starts with bare rock
What is primary?
List a limiting factor in an ecosystem
Any one of these: food, water, living space, mates
The non living parts of an ecosystem
What are the abiotic factors?
These are the herbivores
What are primary consumers?
The carbon cycle is based on this gas
What is carbon dioxide?
____________ succession has already established soil
What is secondary?
The ______________ ____________ is the largest population than an environment can support
What is the carrying capacity?
A region of Earth characterized by a specific climate and dominated by plants and animals suited to living there
What is a biome?
In an ocean aquatic food chain/food web, a seal would be _______________ consumer
What is secondary?
Plants get their nitrogen from the ___________
What is soil?
List an example of a pioneer species
What are mosses or lichens?
This type of organism kills and eats another
Region on Earth containing all living things
What is the biosphere?
A _____________ level is the level at which an organism feeds.
What is a trophic level?
List the steps of the water cycle
Evaporation (transpiration), condensation, precipitation, runoff
In succession, do hardwood trees (oak, beech, maple) or softwood trees (pines, firs, spruce) come first?
Softwood trees
This is how nitrogen in the soil returns to the atmosphere
What is how nitrogen-fixing bacteria in plant roots convert nitrates into nitrogen gas
Energy flows from the sun through an ecosystem as it is passed from one organism to the next. Each transfer of energy results in a loss of ___________
What is heat?
If there are 10,000 kcal of energy in the producer level, how many kcal of energy make it up to the tertiary level? Remember the 10% rule
What is 1kcal?
Phosphorus leaches out of _________ into water sources and is drawn up through the roots of plants
What is rocks?
This is the community which is established at the end of succession
What is a climax or mature community?
A researcher observing an ecosystem describes the amount of sunlight, precipitation and type of soil present - These are __________ factors
What are abiotic?