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Questions and Answers
Which of the following best describes symbiosis?
Which of the following best describes symbiosis?
- The act of one organism preying on another for food.
- A relationship where one organism benefits and the other is harmed.
- A struggle between organisms for limited resources.
- A close, long-term interaction between two different species. (correct)
In commensalism, both organisms involved benefit from the interaction.
In commensalism, both organisms involved benefit from the interaction.
False (B)
Define the term 'parasite' in the context of symbiotic relationships.
Define the term 'parasite' in the context of symbiotic relationships.
An organism that lives in or on another organism, benefiting at the host's expense.
In mutualism, both organisms involved in the relationship receive a ______.
In mutualism, both organisms involved in the relationship receive a ______.
Match the symbiotic relationship with its description:
Match the symbiotic relationship with its description:
Which symbiotic relationship is exemplified by bees pollinating flowers?
Which symbiotic relationship is exemplified by bees pollinating flowers?
Ectoparasites live inside the body of their host.
Ectoparasites live inside the body of their host.
Explain how clownfish and sea anemones exhibit a mutualistic relationship.
Explain how clownfish and sea anemones exhibit a mutualistic relationship.
Tapeworms living in human intestines and absorbing nutrients is an example of ______.
Tapeworms living in human intestines and absorbing nutrients is an example of ______.
Match the species with its symbiotic role in the 'Egrets and Water Buffaloes' scenario:
Match the species with its symbiotic role in the 'Egrets and Water Buffaloes' scenario:
What best describes the interaction between barnacles and whales?
What best describes the interaction between barnacles and whales?
In a parasitic relationship, the host always dies immediately.
In a parasitic relationship, the host always dies immediately.
Describe the role of generalist species in an ecosystem.
Describe the role of generalist species in an ecosystem.
The roots of a black walnut tree produce a chemical called juglone, which hinders the growth of other trees and shrubs, but has no effect on the walnut tree. This relationship is an example of ______.
The roots of a black walnut tree produce a chemical called juglone, which hinders the growth of other trees and shrubs, but has no effect on the walnut tree. This relationship is an example of ______.
Match the parasite type to its location on the host:
Match the parasite type to its location on the host:
Which of the following pairs of organisms exemplifies a parasitic relationship?
Which of the following pairs of organisms exemplifies a parasitic relationship?
Competition occurs when organisms have unlimited resources in an area.
Competition occurs when organisms have unlimited resources in an area.
Explain why Rafflesia plants, which lack chlorophyll, are considered parasitic.
Explain why Rafflesia plants, which lack chlorophyll, are considered parasitic.
Epiphytic plants growing on trees, gaining access to sunlight without harming the trees, is an example of ______.
Epiphytic plants growing on trees, gaining access to sunlight without harming the trees, is an example of ______.
Match the term with its definition:
Match the term with its definition:
Flashcards
Competition
Competition
Struggle for limited resources in an environment.
Predation
Predation
Interaction where one organism (predator) hunts and kills another (prey) for food.
Generalist Species
Generalist Species
Species that eat various types of food.
Specialist Species
Specialist Species
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Symbiosis
Symbiosis
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Mutualism
Mutualism
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Parasitism
Parasitism
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Endoparasite
Endoparasite
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Ectoparasite
Ectoparasite
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Commensalism
Commensalism
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Amensalism
Amensalism
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Study Notes
Mutualism
- It is a type of relationship where both organisms involved benefit from each other.
- An example is the relationship between bees and flowers.
- Bees collect nectar from flowers to make food (honey).
- Pollen is picked up and transferred to other flowers, which helps pollination.
- Clownfish live among the stinging tentacles of sea anemones.
- Anemones gain nutrients from the waste products of clownfish.
Commensalism
- A type of symbiosis where one organism, the commensal, benefits.
- The other organism is not affected positively or negatively.
- Commensals are neither helped nor harmed.
- Barnacles attach to whales, gaining mobility to access plankton-rich waters.
- Whales experience no significant harm or benefit from the barnacles.
- Epiphytic plants depend on trees, gaining better access to sunlight, air, and rainwater.
- The trees are not harmed by the epiphytic plants.
- Remoras attach to sharks, gaining transportation, protection, and food scraps without significantly impacting the sharks' well-being.
Amensalism
- Describes a scenario where one species has a negative effect on another.
- The first species remains unaffected.
- The roots of a black walnut produce juglone, a chemical that hinders the growth of other trees and shrubs.
- Juglone has no effect on the walnut tree itself.
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