Ecosystems
Food Chains
Math & Factors
Miscellaneous
Final Jeopardy
100
Temperature in an ecosystem would be what type of factor?
Abiotic
100
What is the trophic level of an autotroph?
Producer
100
What determines a keystone species?
The amount of direct and indirect effects relative to population size
100
What species migrates in the Serengeti?
Wildebeest
200
What is the definition of an ecosystem?
The components and interactions of biotic and abiotic factors
200
What do arrows represent in feeding models?
Energy Transfer
200
What is the carrying capacity? 
210 (200-220)
200
What species caused a trophic cascade in Yellowstone?
the Wolves
300
What do herbivores do in an ecosystem?
Regulate plant population
300
What trophic level is an organism that eats animals that eat herbivores?
Tertiary Consumers
300
What is the definition of a density dependent limiting factor?
component in environment that impacts a population based on size
300
What is the name of the disease that impacted the wildebeest in Lesson 3?
Antharax
400
What is the behavior where a group of like organisms move together in same direction and speed?
Schooling
400
What trophic level are decomposers located on?
None or All or Behind (interact with all once dead)
400
What type of growth is this? 
Logistic
400
What lake is Isle Royale located in?
Lake Superior
500
Explain the process of a trophic cascade
Addition or removal of an apex predator resulting in correlating effects in lower trophic levels
500
What is the longest food chain?
The plants → inchworms → robins → merlins
500
If the quaternary consumer population has 410 kcal of energy, how much energy does the primary consumer population have?
410,000
500
What is the scientist's name from the Keystone Species video?
Robert Paine
500
Coral reefs have a delicate balance/relationship with surrounding turf algae, which can easily overgrow, killing coral reefs.
Reef sharks are top predators in coral reef ecosystems, helping to maintain the balance of marine life. The reef sharks keep smaller predatory fish populations in check which is important because the smaller predatory fish prey upon herbivorous fish that are vital for controlling turf algae.
What major indirect effect do reef sharks have on this ecosystem that prevents a trophic cascade so long as they are present?
Regulation of herbivorous fish