Organism, population, community, ecosystem, biome
Ecosystem, biome, community, population, organism
Biome, ecosystem, community, population, organism
Biome, ecosystem, population, community, organism
They increase biodiversity.
They decrease biodiversity
They have no effect on biodiversity.
Biodiversity remains the same but the species change.
From the lowest trophic level to the highest
From the highest trophic level to the lowest
From the sun to the producer
From the consumer to the producer
Some is stored within the organism; the rest is lost to the environment
All is stored within the organism.
All is dissipated into the environment
Some is stored within the organism; the rest reverts back to the producer.
Ammonium is converted to nitrate.
Nitrogen gas is converted to ammonia
Ammonia is converted to ammonium.
Nitrates are converted to organic compounds.
Plants release oxygen to the atmosphere as a waste product of photosynthesis
Animals release oxygen to the atmosphere as a waste product of photosynthesis.
Oxygen enters the atmosphere as carbon dioxide from photosynthesis
Plants release oxygen to the atmosphere as a waste product of cellular respiration.
Decay of once-living things
Burning of fossil fuels
Formation of carbonate rocks
As waste from cellular respiration
Coastal areas would likely be more vulnerable to flooding
Biodiversity in the area would increase
The amount of nutrients in coastal waters would increase.
The removal of an estuary would have no effect on the surrounding environment.
Increased levels of greenhouse gases emitted from human sources
Increased water vapor in the atmosphere
Decreased amounts of carbon dioxide in the atmosphere
Heat reflected from solar panels
Bees gathering nectar from a patch of flowers
A barnacle living on the underside of a whale
A brown-headed cowbird laying its egg in a vireo's nest
A flea feeding on the blood of a dog
An energy pyramid cannot contain more energy than organisms need
As energy is lost, more biomass can be supported
The amount of biomass on any level cannot be greater than the available energy can support
Both energy and biomass are lost to the environment at equal rates
Organisms must use energy to warm their bodies
Organisms stop growing as adults, so they don't need all the energy they take in.
Cellular respiration is an efficient process
The conversion of biomass from one organism to another is inefficient
More than 900 kcal
About 100 kcal
Less than 10 kcal
The parasites would no longer have a food supply if the host died.
The host is able to fight off the invading parasites.
The host benefits by keeping the parasites alive.
The parasites help the host before killing it.