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Questions and Answers
Which of the following best describes the concept of symbiosis?
Which of the following best describes the concept of symbiosis?
- It is the interbreeding and competition among organisms of the same species.
- It is the interaction between two different species living in close physical association. (correct)
- It involves the feeding relationship between producers and consumers in an ecosystem.
- It refers to the interaction of populations in a community with abiotic factors.
In the context of ecology, which of these represents a symbiotic relationship?
In the context of ecology, which of these represents a symbiotic relationship?
- Competition among organisms for resources like food and shelter.
- The feeding relationship between autotrophs and heterotrophs.
- The interaction between two different species living in close association. (correct)
- The energy transfer from producers to consumers in an ecosystem.
Within an ecosystem, which of the following is an example of a symbiotic interaction?
Within an ecosystem, which of the following is an example of a symbiotic interaction?
- A producer using sunlight energy to convert carbon dioxide and water into oxygen and carbohydrates.
- The interdependent relationship between several interacting species in a population that inhabit a common environment.
- A group of organisms of the same species living in the same place at the same time and competing for resources.
- The interaction between a parasite and its host, where the parasite benefits at the expense of the host. (correct)
Which term describes an interspecies interaction that benefits both species involved?
Which term describes an interspecies interaction that benefits both species involved?
What type of symbiosis involves one organism deriving nourishment from another organism, its host?
What type of symbiosis involves one organism deriving nourishment from another organism, its host?
Which type of mimicry involves a palatable or harmless species mimicking an unpalatable or harmful one?
Which type of mimicry involves a palatable or harmless species mimicking an unpalatable or harmful one?
What type of ecological relationship occurs when individuals of different species compete for the same resource within an ecosystem?
What type of ecological relationship occurs when individuals of different species compete for the same resource within an ecosystem?
According to G.F. Gause's experiment with Paramecium Aurelia and Paramecium caudatum, what did he conclude when the two species were grown together?
According to G.F. Gause's experiment with Paramecium Aurelia and Paramecium caudatum, what did he conclude when the two species were grown together?
What is the differentiation of niches that enables similar species to coexist in a community called?
What is the differentiation of niches that enables similar species to coexist in a community called?
In the context of ecological relationships, what is the interaction between species in which one species kills and eats another known as?
In the context of ecological relationships, what is the interaction between species in which one species kills and eats another known as?
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Study Notes
Symbiosis
- Symbiosis describes a close and long-term interaction between two or more different species.
- It's a relationship where at least one species benefits.
Types of Symbiosis
- Mutualism: A relationship where both species benefit.
- Commensalism: A relationship where one species benefits, and the other is neither harmed nor helped.
- Parasitism: A relationship where one species benefits at the expense of the other.
Mimicry
- Batesian mimicry: A harmless species mimics a harmful one to avoid predators.
Interspecies Interactions
- Competition: Occurs when individuals of different species compete for the same limited resource, such as food, water, or shelter.
- Predation: One species kills and eats another species.
G.F. Gause's Experiment
- Gause's experiment with Paramecium Aurelia and Paramecium caudatum showed that when grown together, the species with a competitive advantage (Paramecium Aurelia) would outcompete the other species (Paramecium caudatum).
Niche Differentiation
- Niche differentiation, also known as resource partitioning, allows similar species to coexist by minimizing competition for resources. This is achieved by utilizing different food sources, habitats, or times of activity.
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