Food Chains
A __________ __________ represents the energy in an ecosystem.
Food chain
What is the name for a stronger animal that captures, kills, and eats prey?
True or False: Most living things are part of more than one food chain
True
What occurs when every single member of a species dies out and non are left alive?
Extinction occurs.
The __________ __________ raises world temperatures resulting in the loss of ecosystems.
A food chain represents the different __________ relationships in an ecosystem.
Feeding
What is predation?
When a stronger animal captures, kills, and eats an animal of a different species (prey).
True or False: There is only one food chain in an ecosystem.
False
What is a species called that no longer exists?
What is pollution?
What are the three types of organisms in a food chain?
Producers, consumers, and decomposers.
In __________, one organism benefits while it harms the other organism.
Parasitism
What do the arrows represent in a food web?
The arrows represent energy.
What is it called when very few members of a species are left?
It is called an endangered species.
What is deforestation?
What obtains their food by feeding on other organisms?
Consumers obtain their food by feeding on other organisms.
What are the three types of other relationships between different species called?
Predation, parasitism, and commensalism.
What makes up a food web?
Many connected food chains make up a food web.
What are five threats to biodiversity?
Global warming, pollution, deforestation, invasive species, and overpopulation.
An invasive species is introduced __________ or __________ and changes the __________ in an ecosystem.
Accidentally / Intentionally / Balance
What are the three types of consumers? Give an example of each.
Primary Consumers: rabbits, grasshoppers
Secondary Consumers: toads, foxes
Tertiary Consumers: snakes
What is commensalism?
Commensalism is when one organism benefits while the other is not harmed or benefitted.
Name the consumer, producer, and decomposer:
Grass --> deer --> Iberian lynx
Grass: producer
Deer: consumer
Bacteria: decomposer
What are the benefits of preserving biodiversity?
The benefits of preserving biodiversity are a variety of foods for animals and people, medicine, and building materials.
What is a result of overpopulation?
The rapid growth in the exploitation of natural resources.