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Questions and Answers
The gypsy moth was accidentally brought into the United States. The caterpillars of these moths eat the leaves of hardwood trees. Eating these leaves decreases the growth of the trees and may cause the trees to die.
How would an increase in the number of gypsy moth caterpillar affect an environment?
The gypsy moth was accidentally brought into the United States. The caterpillars of these moths eat the leaves of hardwood trees. Eating these leaves decreases the growth of the trees and may cause the trees to die.
How would an increase in the number of gypsy moth caterpillar affect an environment?
- The diversity of trees would increase.
- The amount of oxygen in the air would increase.
- Air temperatures would decrease.
- Tree population would decrease. (correct)
What type of symbiotic relationship is characterized by one organism benefiting while the other is neither helped nor harmed?
What type of symbiotic relationship is characterized by one organism benefiting while the other is neither helped nor harmed?
- Parasitism
- Predation
- Commensalism (correct)
- Mutualism
What is the term that describes the relationship between two different species of organisms in an ecosystem, where one of them benefits from the interaction and the other suffers?
What is the term that describes the relationship between two different species of organisms in an ecosystem, where one of them benefits from the interaction and the other suffers?
- symbiotic
- mutualistic
- parasitic (correct)
- competitive
What is the term that describes all types of relationship between two different species of organisms in an ecosystem, where at least one of them benefits from the interaction?
What is the term that describes all types of relationship between two different species of organisms in an ecosystem, where at least one of them benefits from the interaction?
Which term describes a relationship in an ecosystem where both organisms benefit from each other?
Which term describes a relationship in an ecosystem where both organisms benefit from each other?
Ringworm is a skin infection common among school-aged children. Although the name suggests that a worm causes the disease, it is actually caused by a fungus that lives and feeds on the dead outer layer of the skin. How can the relationship between ringworm and humans be described?
Ringworm is a skin infection common among school-aged children. Although the name suggests that a worm causes the disease, it is actually caused by a fungus that lives and feeds on the dead outer layer of the skin. How can the relationship between ringworm and humans be described?
What does the term "abiotic" refer to in the context of an ecosystem?
What does the term "abiotic" refer to in the context of an ecosystem?
Which of the following best describes an ecosystem's stability?
Which of the following best describes an ecosystem's stability?
The shark and remora have a relationship that benefits the remora but neither helps nor harms the shark. What type of relationship is this?
The shark and remora have a relationship that benefits the remora but neither helps nor harms the shark. What type of relationship is this?
Monty was learning about life in the ocean. He made a food chain: Sun → Algae → Krill → Herring → Gull. Which organism can change energy from the Sun into a form that is usable by other organisms?
Monty was learning about life in the ocean. He made a food chain: Sun → Algae → Krill → Herring → Gull. Which organism can change energy from the Sun into a form that is usable by other organisms?
Mistletoe is a parasitic plant that grows on the branches and trunks of trees. The mistletoe gains its nutrients directly from the tree. Which is the MOST likely result of the parasitic relationship the mistletoe has with the tree?
Mistletoe is a parasitic plant that grows on the branches and trunks of trees. The mistletoe gains its nutrients directly from the tree. Which is the MOST likely result of the parasitic relationship the mistletoe has with the tree?
A certain snake species in an ecosystem eats small rodents. If a bird species is introduced into the ecosystem that also eats small rodents, which of these will MOST likely increase?
A certain snake species in an ecosystem eats small rodents. If a bird species is introduced into the ecosystem that also eats small rodents, which of these will MOST likely increase?
The food chain shows the flow of energy through an ecosystem: Trees → Insects → Birds → Hawks, with Decomposers breaking down all levels. What is the role of decomposers in the system?
The food chain shows the flow of energy through an ecosystem: Trees → Insects → Birds → Hawks, with Decomposers breaking down all levels. What is the role of decomposers in the system?
Tanisha draws a diagram representing relationships in a marsh ecosystem (showing Rice Rat, Seaside Sparrow, Clapper Rail, Squareback Crabs, Fiddler Crabs, Periwinkle Snails feeding related to Detritus). She hypothesizes that an increase in the seaside sparrow population could reduce the number of clapper rails. Which statement BEST explains Tanisha's hypothesis?
Tanisha draws a diagram representing relationships in a marsh ecosystem (showing Rice Rat, Seaside Sparrow, Clapper Rail, Squareback Crabs, Fiddler Crabs, Periwinkle Snails feeding related to Detritus). She hypothesizes that an increase in the seaside sparrow population could reduce the number of clapper rails. Which statement BEST explains Tanisha's hypothesis?
The diagram shows matter cycling: Producers → Consumers → Dead Organic Matter → (Box A) → Matter from Environment → Producers. Which organisms provide the important link in Box A from dead organic matter to matter from the environment?
The diagram shows matter cycling: Producers → Consumers → Dead Organic Matter → (Box A) → Matter from Environment → Producers. Which organisms provide the important link in Box A from dead organic matter to matter from the environment?
A symbiotic relationship has a clown fish and a sea anemone. The clown fish attracts prey for the poisonous anemone, while the sea anemone provides protection for the clown fish. This relationship is an example of
A symbiotic relationship has a clown fish and a sea anemone. The clown fish attracts prey for the poisonous anemone, while the sea anemone provides protection for the clown fish. This relationship is an example of
A scientist observes that both birds and snakes in the same ecosystem depend on the same mouse species as a food source. The relationship between the birds and the snakes is an example of
A scientist observes that both birds and snakes in the same ecosystem depend on the same mouse species as a food source. The relationship between the birds and the snakes is an example of
The relationship between an owl and a mouse is a
The relationship between an owl and a mouse is a
What process involves the breakdown of dead organisms to recycle nutrients back into the ecosystem?
What process involves the breakdown of dead organisms to recycle nutrients back into the ecosystem?
Which of the following is an example of a consumer in an ecosystem?
Which of the following is an example of a consumer in an ecosystem?
What type of organism is a plant that produces its own food?
What type of organism is a plant that produces its own food?
What is the term for the transfer of energy from one organism to another through food chains?
What is the term for the transfer of energy from one organism to another through food chains?
What does the term "commensalism" describe in the context of ecological relationships?
What does the term "commensalism" describe in the context of ecological relationships?
The table lists food sources of some animals that live in a forest ecosystem:
- Black Bear: grass, shrubs, fruits, nuts, honey, beetles, small animals
- Little Brown Bat: gnats, flies, moths, beetles, mosquitoes
- White-tailed Deer: grass, shrubs, fruits, nuts, leaves, twigs, bark
- Beaver: bark, roots, buds, water plant
Which organisms compete directly with each other for food?
The table lists food sources of some animals that live in a forest ecosystem:
- Black Bear: grass, shrubs, fruits, nuts, honey, beetles, small animals
- Little Brown Bat: gnats, flies, moths, beetles, mosquitoes
- White-tailed Deer: grass, shrubs, fruits, nuts, leaves, twigs, bark
- Beaver: bark, roots, buds, water plant
Which organisms compete directly with each other for food?
Which statement best describes the conservation of matter within an ecosystem?
Which statement best describes the conservation of matter within an ecosystem?
Flashcards
Commensalism
Commensalism
When one organism benefits while the other is neither harmed nor helped.
Parasitism
Parasitism
The relationship between two different species of organisms in an ecosystem where one benefits and the other suffers.
Mutualism
Mutualism
A relationship in an ecosystem where both organisms benefit from each other.
Competition
Competition
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Predation
Predation
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Abiotic Factors
Abiotic Factors
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Ecosystem Stability
Ecosystem Stability
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Decomposers
Decomposers
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Decomposition
Decomposition
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Consumer
Consumer
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Energy Transfer
Energy Transfer
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Commensalism
Commensalism
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Photosynthesis
Photosynthesis
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Producer
Producer
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Study Notes
- The gypsy moth was introduced to the United States and its caterpillars eat hardwood tree leaves.
- Damage from the Gypsy Moth caterpillars leads to decreased tree growth and potential tree death.
- An increase in gypsy moth caterpillars decreases the tree population.
- Commensalism is a symbiotic relationship where one organism benefits and the other is unaffected.
- A parasitic relationship is when one species benefits and the other suffers.
- The symbiotic relationship is defined as all types of relationships where at least one organism benefits.
- Mutualism is when both organisms in an ecosystem benefit from each other.
- Ringworm is caused by a fungus that lives and feeds on the dead outer skin layer, defining it as a parasite/host relationship with humans.
- Abiotic refers to the non-living factors and physical components of an ecosystem.
- An ecosystem's stability is defined by maintaining a consistent balance in population sizes and environmental conditions.
- A shark and remora have a commensalistic relationship because the remora benefits and the shark is unaffected.
- Organisms that compete for a similar food source are the most likely to be deer and elk.
- Algae can change energy from the sun into a usable form.
- Mistletoe is a parasitic plant which obtains its nutrients directly from trees.
- Parasitic relationship between mistletoe and trees is most likely to result in stunted tree growth.
- Introduction of a bird species into an ecosystem that consumes small rodents already eaten by a snake species is most likely to increase competition.
- Decomposers recycle energy from dead organisms back into the ecosystem.
- An increase in the seaside sparrow population could reduce the number of clapper rails if seaside sparrows and clapper rails compete for similar resources.
- Decomposers provide the link in matter from dead matter from the environment.
- The clown fish attracts prey for the poisonous anemone, while the sea anemone provides protection for the clown fish, this relationship is mutualism.
- Birds and snakes that depend on the same mouse species as a food source have a competitive relationship.
- The relationship between an owl and a mouse is a predator and prey.
- Decomposition involves the breakdown of dead organisms to recycle nutrients back into the ecosystem.
- An example of a consumer in an ecosystem: Deer
- A plant that produces its own food is called a producer.
- Energy transfer is the term for the transfer of energy from one organism to another through food chains.
- Commensalism is when one species benefits, and the other is unaffected.
- Black bears and white-tailed deer directly compete for food in the forest ecosystem.
- Diatoms depend only on producers for energy.
- Matter is recycled between biotic and abiotic components describes the conservation of matter within an ecosystem.
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