The complex system of feeding relationships in an ecosystem are represented in this type of diagram.
What is a food web?
100
This is the original or ultimate source of all energy for an ecosystem.
What is the sun?
100
Deforestation causes this to happen to the amount of carbon in a biome.
What causes an increase in the amount of carbon?
100
The word for long term relationships between two organisms.
What is symbiosis?
200
The temperature, amount of rainfall, amount of daylight, and type of soil, are all example of this type of factor in an ecosystem.
What is an abiotic factor?
200
The grass and clover at the base of a food web have this role.
What is producer?
200
Because of this there are fewer organisms at the top of a pyramid than at the bottom.
What is there is less energy?
200
Bacteria and fungus that break down dead organic material.
What are examples of decomposers?
200
A relationship in which one organism benefits and another organism is harmed.
What is parasitism?
300
These two ecology terms would describe the behavior of a cat when it eats a mouse.
What are the terms consumer and carnivore?
300
Food webs are made up of many of these.
What are food chains?
300
This is the amount of biomass that would be present at the primary consumer level if the producers had a biomass of 2000 g.
What is 200 g?
300
An example of this occurs when all of the males in a population of deer have to fight for mates and food.
What is competition?
300
For example, a honey guide bird helps a badger find a bee hive so that they can both eat.
What is mutualism?
400
The term that describes the feeding pattern of most humans.
What is omnivore?
400
This level of a food web is made up of animals like rabbits and deer.
What are primary consumers?
400
Only 10% of the energy in one trophic level can be passed up to the next level because organisms use a great deal of energy to live and the rest is given off as this.
What is heat.
400
Competition between different species can be reduced if they do not share the same "job" or the same ___________.
What is niche?
400
This relationship could be represented by a + sign and a 0.
What is commensalism?
500
This biome is sometimes called a frozen desert.
What is the arctic tundra?
500
This would increase the amount of producers and greatly decrease the number of secondary consumers.
What would happen if you eliminated the primary consumers?
500
The trophic level that generally has the largest individuals, but the fewest numbers.
What is the tertiary or highest trophic level?
500
Three ecology terms that would describe the roll of an owl in an ecosystem.
What are carnivore, heterotroph, and consumer.
500
The two processes that cycle carbon between plants and animals in an ecosystem.