States that energy can neither be created or destroyed.
What is the Law of Conservation of Energy?
100
Make up second trophic levels.
What is primary consumers?
100
Producers, consumers and decomposers of each ecosystem make up a ____________?
What is food chain?
100
An example of a food chain in a pond environment would be: algae: water bug: fish: otter. In this example the __________ is at the bottom of the food chain.
What is algae?
200
Could be food, water, light, ground space, or nesting space.
What is resource?
200
All the living and non-living things in an area.
What is an ecosystem?
200
Members of the ecosystem that depend on others members for food?
What are consumers?
200
Organisms that obtain food from dead organisms or from the waste products of living organisms?
What is Saprophyte?
200
A series of interrelated food chains in a given ecosystem is called a ______________.
What is food web?
300
How does predation help prey populations?
What is Predation naturally limits populations by preventing overcrowding and starvation?
300
Cycling of energy through ecosystems.
What is energy cycle?
300
_________ is a graphical model to show the amount of useful energy at each tropic level.
What is energy pyramid?
300
The interaction between many food chains is a _______?
What is a food web?
300
Bacteria is an example of a _________.
What is a decomposer?
400
A tick on a dog is an example of a ____________ relationship.
What is parasitistic?
400
_______ serves as a major source of energy.
What is the Sun?
400
The greatest amount of energy that exists at the base of the pyramid.
What is the Sun?
400
Organisms such as bacteria and fungi that break down the remains of dead plants and animals.
What is decomposer?
400
In which type of relationship do both species benefit?
What is mutualism?
500
In the rain forest, strangler figs are vines that grow on top of existing trees. In time, the fig vine kills the existing tree. What type of relationship is this?
What is parasitism?
500
______ within an ecosystem is constantly recycled.
What is matter?
500
The top layer of the Trophic Pyramid.
What is tertiary consumers?
500
A food chain is a series of relationships between members of an ecosystem so that _________ can be transferred between them.
What is energy?
500
Hermit crabs live in shells that were abandoned by snails. This neither helps nor harms the snails. What type of relationship is this?