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Food Webs
Symbiosis
Living Communities
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100

The ecological relationship that forms food webs.

What is predation (or predator-prey)

100
A relationship where one organism benefits, and the other is adversely affected.
What is parasitism?
100

A community of plants and animals differentiated by abiotic factors such as climate.

What is a biome?

100

The relationship often shared by organisms that both require the same limited resource.

What is competition?

200
All food webs start with ___________.
What are producers / autotrophs / plants.
200
A relationship where one organism benefits, and the other organism is unaffected.
What is commensalism?
200

One of the two primary factors that differentiate terrestrial biomes.

What is temperature or precipitation?

200

This allows species that require the same resource to share equitably.

What is resource partitioning?

300
What type of organism if found at the top of a food web?
What is a carnivore or a predator?
300
E. coli are bacteria that live in the gut of human beings. The human provides the ideal habitat for habitat for E. coli reproduction and the E. coli provides the vitamin K that we use. What is this relationship called?
What is a mutualistic relationship?
300

These interactions connect the organisms in a biome into a unified system.

What are ecological relationships?

300

When different species compete over the same resource. 

Interspecific competition

400
Make a food web with the following: mouse, snake, seeds, hawk (on the board with arrows)
What is seeds --> mouse --> snake --> hawk
400
Tapeworms live inside the human intestines and take nutrients from the human. The human being gets sick because of the tapeworm. What type of relationship is this?
What is a parasitic relationship?
400

The primary factor that differentiates aquatic biomes

What is salinity (or salt content)?

400

When members of the same species compete over a common resource.

What is intraspecific competition?

500
When predators increase in a food web, what is the impact on the food web?
The number of prey decrease, and eventually, the predators run out of food to eat because they have hunted all the prey.
500

As bison walk through the grass, insects become active and are seen and eaten by cowbirds. This relationship neither harms nor benefits the bison. 

What is a commensalistic relationship?

500

A chain reaction that occurs because a change in a predator population causes changes to prey populations.

What is a trophic cascade?

500

This specific relationship among offspring is most likely to limit the number of offspring in a generation that can survive to adulthood.

What is intraspecific competition over food?