Podcast
Questions and Answers
Elephants cooperate to raise their young and watch for ______.
Elephants cooperate to raise their young and watch for ______.
predators
Squirrel monkeys benefit by living in groups and cooperating as they hunt for ______.
Squirrel monkeys benefit by living in groups and cooperating as they hunt for ______.
food
In a predator-prey relationship, the ______ eats another organism.
In a predator-prey relationship, the ______ eats another organism.
predator
The osprey is an example of a predator that catches ______.
The osprey is an example of a predator that catches ______.
Predators help prevent prey populations from growing too ______ for the ecosystem.
Predators help prevent prey populations from growing too ______ for the ecosystem.
Trees compete for ______, which can affect their growth.
Trees compete for ______, which can affect their growth.
The shade from tall trees can slow the growth of ______ trees.
The shade from tall trees can slow the growth of ______ trees.
Wolves compete with ______ for meat from animals they kill.
Wolves compete with ______ for meat from animals they kill.
Cooperative relationships can be found in many different ______ across the world.
Cooperative relationships can be found in many different ______ across the world.
Competition occurs when two or more organisms need the same resource at the same ______.
Competition occurs when two or more organisms need the same resource at the same ______.
The relationship between barbel fish and hippos is a type of ______.
The relationship between barbel fish and hippos is a type of ______.
In a commensalism relationship, one species benefits while the other is ______.
In a commensalism relationship, one species benefits while the other is ______.
Epiphytes grow on the trunks of trees and absorb their nutrients from the ______.
Epiphytes grow on the trunks of trees and absorb their nutrients from the ______.
In a parasitism relationship, the ______ benefits while the host is harmed.
In a parasitism relationship, the ______ benefits while the host is harmed.
The hunting wasp's larvae act as a ______ when they consume the paralyzed spider.
The hunting wasp's larvae act as a ______ when they consume the paralyzed spider.
A symbiotic relationship in which both partners benefit is called ______.
A symbiotic relationship in which both partners benefit is called ______.
Clownfish receive protection from predators thanks to their relationship with ______.
Clownfish receive protection from predators thanks to their relationship with ______.
The relationship between trees and epiphytes involves obtaining more living space and ______.
The relationship between trees and epiphytes involves obtaining more living space and ______.
One example of a parasitic relationship is when a ______ lays its eggs in a spider's body.
One example of a parasitic relationship is when a ______ lays its eggs in a spider's body.
Symbiotic relationships often involve an exchange of ______.
Symbiotic relationships often involve an exchange of ______.
Flashcards
Symbiosis
Symbiosis
A close, long-term relationship between two species that usually involves an exchange of food or energy.
Commensalism
Commensalism
A symbiotic relationship that benefits one species but does not harm or benefit the other.
Parasitism
Parasitism
A symbiotic relationship where one species benefits and the other is harmed.
Mutualism
Mutualism
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Parasite
Parasite
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Host
Host
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Epiphytes
Epiphytes
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Barbel Fish
Barbel Fish
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Hippos
Hippos
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Hunting Wasp Larvae
Hunting Wasp Larvae
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Cooperative Relationships
Cooperative Relationships
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Competitive Relationships
Competitive Relationships
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Predator-Prey Relationships
Predator-Prey Relationships
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Predator
Predator
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Prey
Prey
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Carrying Capacity
Carrying Capacity
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Squirrel Monkeys Cooperation
Squirrel Monkeys Cooperation
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Tree Competition
Tree Competition
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Wolves and Ravens Competition
Wolves and Ravens Competition
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Ecosystem Relationships
Ecosystem Relationships
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Study Notes
Lesson 2: Interactions Within Ecosystems
- Objective: Predict patterns of interactions among organisms across multiple ecosystems.
- Entry Card (Interactive Presentation): Students answer questions regarding the relationship between species (e.g., cleaner shrimp and moray eel).
- Symbiosis:
- A close, long-term relationship between two species that often involves an exchange of food or energy.
- Barbel fish and hippos have a symbiotic relationship where the fish follow and groom the hippo to feed on parasites and the hippo benefits from having any parasites removed from its mouth.
- Symbiotic relationships occur when two organisms live in direct contact and form a relationship.
Types of Symbiotic Relationships
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Commensalism: A symbiotic relationship that benefits one species but does not harm or benefit the other.
- Epiphytes grow on tree trunks, benefiting from increased sunlight and living space without harming the trees.
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Parasitism: A symbiotic relationship that benefits one species and harms the other.
- The hunting wasp larva is a parasite. The female wasp stings a spider to paralyze it, lays eggs in its body, the eggs hatch into larvae and consume the spider.
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Mutualism: A symbiotic relationship in which both partners benefit.
- Clownfish and sea anemones live in tropical coral reefs. Clownfish receive protection from predators, and the anemone receives energy from the clownfish's waste.
Other Relationships in Ecosystems
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Cooperative Relationships:
- Elephants cooperate to raise their young and watch for predators.
- Squirrel monkeys cooperate to live in groups, hunt, and watch for predators.
-
Predator-Prey Relationships:
- Predators (e.g., osprey) eat prey (e.g., fish). These relationships help regulate prey populations keeping the ecosystem healthy.
-
Competitive Relationships:
- Organisms compete for resources (e.g., sunlight, water, food). This can be seen with Trees competing for sunlight or Wolves and ravens competing over carcasses.
Homework
- Investigation: Examine relationships in communities and write observations about characteristics of the relationships.
- Lesson Check: Conduct a lesson check on interactions within ecosystems.
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