General Biosphere
Energy in Ecosystems
Challenge
Populations
Cycles of Matter
100
Energy for all life processes come from here.
What is the sun
100
Organisms that make their own food.
What is an autotroph.
100
When organisms or humans move from one location INTO another.
What is immigration.
100
All the members of a species in a geographic area.
What is a population.
100
The continuous movement of water from the atmosphere to the Earth's surface.
What is the water cycle?
200
The variety of life on Earth is referred to as:
What is biodiversity
200
All the possible feeding relationships in an ecosystem.
What is a food web?
200
Kudzu, Burmese Pythons, and Asian Carp are all examples of this form of pesty species:
What is an invasive species.
200
Unlimited population growth. This type of growth looks like a J on a graph.
What is exponential growth.
200
These organisms pull carbon dioxide out of the atmosphere during the carbon cycle.
What are producers/autotrophs.
300
Heterotrophs that eat both plants and animals.
What is an omnivore.
300
Energy levels in a food web, chain, or pyramid.
What is a trophic level?
300
These are the major world biomes that have mostly SHORT plants in them.
What are tundra, desert, and grassland?
300
This is a form of population growth that reaches a carrying capacity and levels off. It is generally S shaped on a graph.
What is logistic growth.
300
Process in which bacteria convert nitrogen gas into nitrates that plants can absorb.
What is nitrogen fixation.
400
A group of ecosystems that share similar latitude and climate.
What is the biome.
400
An organism that is at the top of a food chain or web.
What is an apex predator?
400
The study of human populations is referred to as:
What is a demography?
400
When a population has stopped growing, it is said to have reached this.
What is a carrying capacity.
400
The phosphorous cycle is present in ALL of the Earth's sphere except for one.
What is the atmosphere.
500
All the populations of different species in a geographic area.
What is a community.
500
How many energy transfer steps are between the Sun and a tertiary consumer?
What is 4.
500
Total weight of living tissue in a trophic level or in an ecosystem.
What is a biomass?
500
Disease, predation, parasitism, and competition for resources are all examples of this kind of limiting factor.
What is a density-dependent limiting factor.
500
They connect biological, geological and chemical aspects of the biosphere.
What are biogeochemical cycles.
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