Energy in Ecosystems
$100: These organisms produce organic molecules from inorganic compounds and are essential for ecosystems.
What are autotrophs (producers)?
$100: This ecological model represents a single pathway of energy flow in an ecosystem.
What is a food chain?
$100: These factors, such as sunlight and water, make up the nonliving components of an ecosystem.
What are abiotic factors?
$100: This type of succession occurs on bare rock, such as after a volcanic eruption.
What is primary succession?
$100: Trees and plants provide this service by removing carbon dioxide from the atmosphere and releasing oxygen.
What is photosynthesis?
$200: This process, used by photoautotrophs, converts sunlight into chemical energy.
What is photosynthesis?
$200: These are the primary producers in aquatic food chains.
What are phytoplankton?
$200: This process allows nitrogen to cycle between plants, animals, and decomposers.
What is nutrient recycling?
$200: This type of succession occurs in areas where vegetation has been removed but soil remains.
What is secondary succession?
$200: These insects are essential for pollinating crops, contributing billions of dollars to agriculture.
What are honey bees?
$300: Organisms that use energy from chemical bonds to make organic compounds are called this.
What are chemoautotrophs?
$300: This term describes organisms, like wolves, that occupy the top position in food chains and are not preyed upon by others.
What are apex predators?
$300: A forest, a tree, and even a single leaf can each be considered this.
What is an ecosystem?
$300: These species are the first to colonize barren environments during primary succession.
What are pioneer species?
$300: These are products like food, wood, and medicines derived from ecosystems.
What are ecosystem goods?
$400: Only this percentage of energy at one trophic level is passed to the next higher trophic level.
What is 10%?
$400: This model shows multiple feeding relationships within an ecosystem.
What is a food web?
$400: These processes move energy and matter through the biotic and abiotic components of ecosystems.
What are ecosystem processes?
$400: True or False: A climax community is the stable, final stage of all ecological succession.
What is false?
$400: This term describes intangible benefits provided by ecosystems, like clean air and water filtration.
What are ecosystem services?
$500: The total amount of energy produced by all producers in an ecosystem is referred to by this term.
What is gross primary production (GPP)?
$500: This term refers to a species with a disproportionately large impact on its ecosystem, often as an apex predator.
What is a keystone species?
$500: This term describes factors, like nitrogen availability, that constrain the size of populations in ecosystems.
What are limiting factors?
$500: A forest regenerating after a wildfire is an example of this type of succession.
What is secondary succession?
$500: This parasitic mite is a significant threat to honey bee populations.
What is Varroa destructor?