Food Chain
Keystone
Trophic Cascade
Food Web
Consumers
100
What is a food chain?
A diagram that shows the transfer of energy with a single pathway
100
In a food chain or food web the arrows show what?
The direction the energy is flowing
100
For a species to survive and thrive they need all but one of these. Which one is not needed?
Habitat Reproduction
Nutrients Life Style
Life Style
100
What level on a food chain or food web provides 100% of the energy?
Energy source: The sun is an example of energy source.
100
How do Primary Producers create their energy?
Plants or Phytoplankton use photosynthesis from the sun's energy.
200
What part of a food chain receives the largest amount of energy from a primary producer?
Primary Consumer
200
How can the removal of a keystone species affect an ecosystem?
It can cause a trophic cascade and disrupt the ecosystem balance.
200
What could be a direct consequence of removing a top predator from an ecosystem?
An increase in the population of herbivores, leading to overgrazing.
200
Explain the difference between a Food Chain and a Food Web.
A food web is all the possible sources of energy available for producers, consumers, and decomposers. A food chain is a specific strand of energy transferring from producer, to primary consumer, to secondary consumer, and to tertiaries.
200
Which has arrows that represent energy transfer?
1. food chain
2. food web
3. neither
4. both
4. both - a food chain and a food web
300
Why is it critical not to have a cat as part of a Food Chain?
Because they are always sleeping.
300
Why are keystone species important for biodiversity?
They help to maintain the structure and integrity
300
What is a trophic Cascade?
A series of secondary extinctions triggered by the primary extinction of a key species in an ecosystem.
300
Why should a student never have a Daddy Long Leg as a partner for ecosystem projects?
Daddy Long Legs have no idea how to make a web.
300
Organisms such as worms, fungi, and bacteria are considered (besides being called a decomposers).
Scavangers
400
What is the percentage of energy transferred to Secondary Consumer?
00.1%
400
Define a Keystone Species.
A species that plays a critical role in maintaining the structure of an ecological community.
400
In what way do species adapt to meet the challenges of their habitats?
Physical changes
400
What happens to the level of energy as it transfers from producers up to a Tertiary Consumer?
The level of energy consumed decreases.
400
An organism that hunts another organism as a source of energy is called.
Predator
500
What is the theoretical sequence for the flow of energy.
2. producers, consumers, decomposers
500
What does a habitat need to be considered a habitat (list all four.)
Organism
Population
Biosphere
Ecosystem
Community
500
There is a specific feature within an organism to survive. What is it called?
Adaptation
500
How do you best show the flow of energy in a biome?
Food Web
500
An organism that gets energy from eating other organisms is called a __________.
consumer
600
If humans are considered to be on the top level of a food chain, who comes next?
Cannibals
600
What are the two types of habitats are on the planet Earth?
The first is a terrestrial habitat. This means a majority of the organisms in this habitat survive on land. The second is Aquatic habitat. This means a majority of the organisms in that habitat survive in water.
600
Why should people avoid taking classes that deal with Trophic Cascades?
Because most species fail.
600
Why are decomposers such an essential part of any food web?
Decomposers recycle nutrients that keep the flow of energy moving throughout the food web. Without the decomposer no energy would be recycled to producers.
600
How do you know that the taste of an APEX is horrible?
Because nothing consumes an APEX.