Podcast
Questions and Answers
The relationship between barbel fish and hippos is an example of ______.
The relationship between barbel fish and hippos is an example of ______.
symbiosis
In commensalism, one species benefits while the other is ______.
In commensalism, one species benefits while the other is ______.
neither helped nor harmed
In parasitism, one species benefits at the expense of the ______.
In parasitism, one species benefits at the expense of the ______.
host
Clownfish and sea anemones have a mutualistic relationship where both partners ______.
Clownfish and sea anemones have a mutualistic relationship where both partners ______.
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Epiphytes are plants that grow on the trunks of trees and derive nutrients from the ______.
Epiphytes are plants that grow on the trunks of trees and derive nutrients from the ______.
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The hunting wasp’s larvae are an example of a parasite that harms its ______.
The hunting wasp’s larvae are an example of a parasite that harms its ______.
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Symbiotic relationships occur when two organisms live in direct ______.
Symbiotic relationships occur when two organisms live in direct ______.
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Both the hippos and barbel fish rely on their interaction to stay ______.
Both the hippos and barbel fish rely on their interaction to stay ______.
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A symbiotic relationship where a species benefits but does not harm the other is called ______.
A symbiotic relationship where a species benefits but does not harm the other is called ______.
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The clownfish receives protection from ______ when living among sea anemones.
The clownfish receives protection from ______ when living among sea anemones.
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Elephants cooperate with each other to raise the young and watch for ______.
Elephants cooperate with each other to raise the young and watch for ______.
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Squirrel monkeys benefit by living in ______.
Squirrel monkeys benefit by living in ______.
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A ______-prey relationship is one in which one organism eats another.
A ______-prey relationship is one in which one organism eats another.
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The osprey is an example of a predator that catches a ______.
The osprey is an example of a predator that catches a ______.
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Predators help prevent prey populations from growing too large for the carrying ______ of the ecosystem.
Predators help prevent prey populations from growing too large for the carrying ______ of the ecosystem.
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Trees compete for ______ to grow and thrive.
Trees compete for ______ to grow and thrive.
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The shade from tall trees can slow the ______ of younger trees.
The shade from tall trees can slow the ______ of younger trees.
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Wolves compete with ______ for meat from the animals they kill.
Wolves compete with ______ for meat from the animals they kill.
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Cooperative relationships can be found in many different ______ across the world.
Cooperative relationships can be found in many different ______ across the world.
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Competition describes interactions between organisms that need the same ______ at the same time.
Competition describes interactions between organisms that need the same ______ at the same time.
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Study Notes
Lesson Objective
- Predict patterns of interactions among organisms across multiple ecosystems.
Interactions Within Ecosystems
- An interactive presentation, a science probe, helps assess prior knowledge of the lesson's content about relationships within ecosystems.
- An entry task asks students to determine the relationship between cleaner shrimp and a moray eel.
Symbiotic Relationships
- Symbiosis is a close, long-term relationship between two species, often involving an exchange of food or energy.
- Symbiotic relationships occur when two organisms live in direct contact and form a relationship, some species are almost always found together.
- Symbiosis Barbel fish and hippos: the fish follow and groom the hippos to eat parasites on their skin and mouths. Both organisms benefit from this interaction.
Types of Symbiosis
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Commensalism: One species benefits but the other is neither harmed nor helped. Examples include epiphytes growing on trees.
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Epiphytes grow on trees for support and sunlight, while the trees are unaffected.
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Parasitism: One species benefits, and the other is harmed. The larvae of the hunting wasp is a parasite. The female wasp stings a spider to paralyze it and lays eggs in its body. The larvae then hatch and eat the spider.
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Mutualism: Both species benefit. Clownfish receive protection from sea anemones, and the anemones gain energy from the clownfish's waste.
Other Relationships
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Cooperative Relationships: Animals, like elephants, cooperate to raise young and watch for predators. Squirrel monkeys also benefit by living in groups to hunt for food and watch for danger.
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Predator-Prey Relationships: One species (predator) eats the other (prey). Examples include ospreys catching fish. Predators help manage prey populations, preventing overgrowth.
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Competitive Relationships: Organisms compete for the same resources, like sunlight, grazing areas, water, or food. Examples, trees competing for sunlight and wolves competing with ravens for meat.
Homework
- Examine three relationships in communities.
- Describe observed characteristics of each relationship.
- Complete a lesson check on interactions within ecosystems.
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Description
This quiz explores the patterns of interactions among organisms within various ecosystems, focusing on symbiotic relationships. Students will examine examples of mutualism, commensalism, and the significance of these interactions in ecological communities.
