Food Chains
& Webs
& Webs
A mushroom and mold are examples of this type of energy category, which is characterized by taking the remains of dead organisms and breaking them into simple chemicals.
The biosphere is the sum of all ecosystems on land, air and water on this planet.
What is earth?
Name two abiotic factors that can affect an ecosystem.
What is sunlight, water, soil, temperature, oxygen, pollution, fire... ?
An Australian sheep rancher named Thomas Austin released 24 of this animal on his property in 1859, with disastrous results to the native grassland ecosystem.
What is a rabbit?
This branch of science studies interactions between biotic (living) and abiotic (non-living) organisms.
What is Ecology?
This chemical cycle features percolation, transpiration, condensation, precipitation and deposition.
What is the water cycle?
Name 2 terrestrial biomes.
What is tundra, taiga, forests, steppe, rainforest, chaparral, monsoon, shrubland, desert, savanna... ?
This relationship occurs in an population when organisms experience a limited supply of one resource, such as food, water, territory, shelter, or mates.
What is competition?
This happens to energy each time it moves up a trophic level in an ecosystem.
What is "some is lost"?
Some scientists believe that this chemical cycle has been affected by the greenhouse effect, which is characterized by the trapping of CO2.
What is the carbon cycle?
This biome is the largest biome on earth.
What is a marine biome?
Barnacles on a whale are an example of this kind of community interaction, or symbiosis.
What is commensalism?
This idea corrects or even replaces the idea of a food chain because sometimes an animal can occupy multiple levels in a food chain, depending on what it ate that day.
What is a food web?
Decomposers play an important part in this chemical cycle by returning nitrates, nitrites and ammonia back into the soil.
What is the nitrogen cycle?
This marine biome is created when the ocean meets a freshwater river or stream.
What is an estuary?
When a population is unhindered because of an abundance of resources, the population will grow in this manner.
What is exponential growth?
Name two of the three types of ecological pyramids.
What are energy, biomass or pyramids of numbers?
This microscopic algae found in marine environments is responsible for the majority of photosynthesis on earth (oxygen cycle).
What is phytoplankton?
These 2 abiotic factors are the main defining characteristics of aquatic biomes.
What are sunlight availability and amount of nutrients dissolved in water?
In experiment 3.2, your plants experienced this type of limiting factor?
What is competition or density-dependent factor?