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WorksheetsCh. 2 L. 2 Flow of Energy Through an Ecosystem
Total questions: 90
Worksheet time: 1hrs 28mins
All energy in an ecosystem comes from the sun. This energy is passed through the ecosystem as organisms eat other organsims. This process is called (a) .
Organisms that produce their own food mostly through photosynthesis (producers). Examples are plants and algae.
Ominvore
Detritivore
Heterotroph
Autotroph
Heterotrophs that get energy and nutrition from dead or decaying organisms or their waste products and recycle nutrients back to the ecosystem.
Producer
Trophic
Decomposer
Autotrooph
The level in an Ecological pyramid that includes all the organisms that share the same place in a food chain.
Trophic Levels
Toxic Levels
KeKe Levels
Environmental Systems
Herbivores are the (a) in the trophic level where they eat the primary producers.
Autotrophs--The bottom trophic level where all organisms produce their own food, usually by photosynthesis.
Trophic Levels
Producers
Ominvores
Herbivores
The third trophic level is where the animals eat herbivores and are called (a) .
The fourth trophic level where animals eat secondary consumers or below.
Herbivore
Autotroph
Tertiary Consumer
Tertiary Producer
Only 10% of the energy is passed on from one trophic level to the next. 90% is lost as heat due to cellular respiration or waste.
Tertiary Consumer
Biotic Factor
Abiotic Factor
10% Rule
Matter is passed up the ecological pyramid in a similar way to energy but recycled by decomposers and detritivores. This Biomass pyramid roughly follows the 10% rule as well.
Flow of energy
Flow of matter
Ecological Hysteria
Producers
Complex trophic relationships in an ecological pyramid.
Food Chain
Food Web
Abiotic Factor
Biome
Parts of an ecosystem that are living or deal with the living. Examples include producers, consumers, decomposers, predation, disease, competition, parasitism, and symbiosis.
Abiotic Factors
Biotic Factors
Community
Population
Parts of an ecosystem that are not living. Examples: water, soil, sunlight, temperature, altitude.
Detritivores
Herbivores
Biotic Factors
Abiotic Factors
What is the primary source of energy for the ecosystem pictured above?
Grass and Green plants
Hawks and Deer
Tadpoles and Fish
Sun
In this food web, which of the following organisms eats the largest variety of different producers?
Mouse
Grasshopper
Dragonfly
Butterfly
(a) energy is available to be passed on to the next level in a food web.
Consumers obtain energy by (a)
Grass is considered a (a)
An organism that eats a producer would be called a (a) .
In this food chain, the snake would be a (a)
Organisms such as bacteria and fungi that break down the remains of dead plants and animals without need for internal digestion are called (a) .
Why is some energy not passed on to the next trophic level?
The organisms at each level use about 90% of the available energy to live.
The statement is NOT true. All energy IS passed from one trophic level to the next.
The organisms at each level use about 10% of the available energy to live.
Most energy is absorbed by the soil instead.
Ecosystem
The thin layer of land, air, and water that is home to all living organisms
Consists of all the living organisms and their interactions with
nonliving components.
All the members of the same species living in one place.
The flow of energy patterns involving the feeding relationships between producers and consumers in a community.
If only 10% of the energy in the pyramid is available as you move from one trophic level to the next, what happens to the other 90%?
Passed on to decomposers
Metabolized and "lost" as heat energy and waste
Assembled into tissues of producers permanently
False statement - 100% of the energy is available
What are the PRODUCERS in this food web?
Wildflowers and Grass
Rabbit and Mouse
Snake and Hawk
Grass and Mouse
Technically speaking, ALL food chains should end with these types of organisms so that nutrients can be recycled back into the habitat…
parasites
predators
herbivores
symbiotes
decomposers
What do the arrows in a food chain/web represent
Who lives in the same environment
Who is related to who
Organism's children
The flow of energy
(a) of energy is LOST by other means at each trophic level.
Ecosystems are classified by (a)
The shrew provides energy for the (a)
Consumers that only eat other consumers are (a)
Consumers that eat producers and consumers are (a)
Competition between individuals of the SAME species is (a) competition.
What are the PRODUCERS in this food web?
Wildflowers and Grass
Rabbit and Mouse
Snake and Hawk
Grass and Mouse
Technically speaking, ALL food chains should end with these types of organisms so that nutrients can be recycled back into the habitat…
parasites
predators
herbivores
symbiotes
decomposers
What is the definition of the word parasitism?
An organism that eats only plants
An organism that eats other animals
An organism that breaks down wastes and dead organisms
A symbiotic relationship in which one species benefits and the other is harmed
What is the primary source of energy for the ecosystem pictured above?
Grass and Green plants
Hawks and Deer
Tadpoles and Fish
Sun
What are the PRODUCERS in this food web?
Wildflowers and Grass
Rabbit and Mouse
Snake and Hawk
Grass and Mouse
In this food web, which of the following organisms eats the largest variety of different producers?
Mouse
Grasshopper
Dragonfly
Butterfly
If only 10% of the energy in the pyramid is available as you move from one trophic level to the next, what happens to the other 90%?
Passed on to decomposers
Metabolized and "lost" as heat energy and waste
Assembled into tissues of producers permanently
False statement - 100% of the energy is available
