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Vocabulary
Food Webs
Food chains
Types of Organisms
Misc.
100
An environment that provides the things an organism needs to live, grow, and reproduce.
What is a habitat?
100
Two ways energy can be harvested by organisms from non-living sources.
What is photosynthesis and chemosynthesis?
100
The flow of energy from one organism to another in an ecosystem is called this:
What is food chain?
100
Some of the examples of these organisms are plants and phytoplankton.
What is a producer or autotroph?
100
Each level in the energy pyramid is called this
What is a trophic level?
200
The community of organisms that live in a particular area, along with their nonliving surroundings. This includes abiotic and biotic factors.
What is an ecosystem?
200
These organisms are herbivores, therefore they are called ______________ consumers.
What is primary?
200
The bottom of the energy pyramid is always this type of organisms
What are producers?
200
The term used to describe the plants and green algae as they can make their own food?
What is an autotroph?
200
An organism that is killed and eaten by another organism.
What is prey?
300
The name of a consumer that only eat herbivores.
What are carnivores or secondary consumers?
300
A food web is more realistic than a food chain for showing the feeding relationships in ecosystems because
What is producers are usually eaten by many different consumers and most consumers are eaten by more than one predator?
300
Organisms that feed on decaying organic matter and return the nutrients back to the ecosystem. Examples are earthworm and millipedes.
What are detritivores?
300
The role of decomposers
What is breaking down food and recycle nutrients?
300
Earth’s atmosphere is 20.9% molecular oxygen (O2). This process gives off the most oxygen in the atmosphere.
What is photosynthesis?
400
An organism that breaks down wastes and dead organisms.
What is a decomposer?
400
This is a way to show how energy in a food web is allocated. Usually there is a large base and a pointed top.
What is an energy pyramid?
400
To show how many organisms are at each level of a food chain, ecologists use a model called
What is the pyramid of numbers?
400
The loss of the producers in an ecosystem would most likely result in one of the following: A. a decrease in the primary consumers and the secondary consumers B. an increase in the primary consumers and the secondary consumers C. an increase in the primary consumers and a decrease in the secondary consumers D. a decrease in the primary consumers and an increase in the secondary consumers
What is A. a decrease in the primary consumers and the secondary consumers?
400
This will happen to the producer population and consumer population if all the decomposers in an ecosystem is removed.
What is no nutrients available for producers and then they will die off which subsequently will kill all consumers?
500
A series of events in which one organism eats another and obtains energy. Usually written on one line.
What is a food chain?
500
What is the percentage of energy LOST as it moves from producer to primary consumer to secondary consumer?
What is 90%?
500
Only a small amount of the energy (10%) stored in food is available to the next organism in a food chain because
What is most of the energy is used up for life processes?
500
Pompeii worms, Alvinella pompejana, live in tubes along hydrothermal vents on the sea floor. The worms are covered by a layer of bacteria. Scientists have discovered that the bacteria insulate the worms from the extreme heat of the vents, and the worms secrete mucus from glands on their backs to feed the bacteria. This term best applies to the relationship between the Pompeii worms and the bacteria. - Options a. Mutualism b. Commensalism c. Parasitism
What is Mutualism?
500
A group of organisms that are physically similar and can mate with each other and produce fertile offspring.
What is a species?