Vocab
Food webs/ chains
Energy Pyramids/ 10% rule
Primary/Secondary Succession
Consumer levels/ Trophic levels
Biodiversity/Sustainability in an Ecosystem
100
What is an omnivore?
An organism that eats both plants and animals
100
What is the secondary consumer in the food chain below?
The small fish
100
If there are 4600 J at the producer level, how many joules will there be at the secondary level?
46
100
What is the difference between primary succession and secondary succession.
Primary succession starts with rock and secondary succession starts with soil.
100
Identify the Producer.
number 1
100
Make this statment true by filling in the correct answer. "Human activity that decreases the biodiversity of pollinators in an ecosystem _________the amount of food resources humans can harvest from the ecosystem."
A. increase
B. decrease
C. saves
D. has no effect on
B. decrease
200
What is a detritivore? And give an example.
A detritivore is an organism that eats the dead organisms.
Ex: Mushroom, bacteria, vultures
200
What are ALL the primary consumers in the food web?
Grasshopper
butterfly
fruit fly
200
Does the primary consumer directly or indirectly give energy to the tertiary consumer?
Indirectly
200
What is the pioneer species?
The first organisms to colonize in an ecological succession.
200
What letter represents the fourth trophic level?
B
200
Based on the information in the circle graphs, which ecosystem is least sustainable if a natural disaster strikes the area? Explain your reasoning. 
Ecosystem C, because it has the fewest species compared to the other graphs.
300
What is the difference between a consumer and a producer?
Consumer- is an organism that eats other organisms for energy
Producers- organisms that make their own food
300
What is the difference between a food chain and a food web?
Food chain shows one flow of energy. Food web shows multiple flows within an ecosystem.
300
What animals are in the third trophic level?
Frog
Spider
Fox
300
What is the term that describes the final, stable community that is established after succession has occurred over a long period, such as a mature forest or coral reef?
Climax Community
300
What type of organism would be found at the D level? (consumer level)
Primary consumer
300
How do scientist determine which ecosystems are the most stable and sustainable?
A. determining if the ecosystem has the greatest level of biodiversity.
B. determining if the ecosystem has the most available water.
C. determining if the ecosystem is the largest in size.
D. determining if the ecosystem has the largest number of individual organisms.
A. determining if the ecosystem has the largest number of individual organisms.
400
What is nitrogen fixation?
The process by which nitrogen gas from the atmosphere is converted into a form plants can use
400
The frog is considered what type of consumer? Is it herbivore, omnivore, or carnivore according to this food chain.
Secondary consumer, carnivore/omnivore
400
How many Joules would be found at the question mark section? And what type of consumer would this be?
62, secondary consumer
400
Name at least two natural disasters that would cause primary succession and two natural disasters that would cause secondary succession.
Primary Succession - Volcanoes and Glaciers
Secondary Succession - Forest Fires, Floods, Tornadoes, Farming, Hurricanes
400
Identify the food chain in the food web that has four trophic levels.
Grass, Grasshopper, Birds, Foxes
400
How do biodiversity and sustainability work together?
The higher the biodiversity, the greater the sustainability.
500
What is transpiration?
process by which plants release water vapor into the atmosphere through their leaves
500
The following is a table with various organisms and their role in an ecosystem. Which of the following food chains are possible based on the table provided?
Select TWO correct answers.
A. grass → redtail hawk → racoon
B.elderberry → racoon → bobcat
C. grass → jackrabbit → ocelot
D.cattail → wild boar → deer
B.elderberry → racoon → bobcat
C. grass → jackrabbit → ocelot
500
How much energy is lost from one energy level to the next? What form is it lost in?
90% is lost in the form of heat
500
Explain why primary succession requires a longer recovery than secondary succession.
Primary succession starts with bare rock. So lichen and moss start to grow on the rock and use plant acid to break down the rocks and turn it into soil. The process takes several years to create.
500
Identify the consumer levels of each organism.
Producer- grass, primary consumer- grasshopper, secondary consumer- frog, tertiary consumer- snake
500
Explain why the sustainability in Food Web A is higher than Food Web B.
If one organism is removed the food web can still operate (work) with little or no negative effect.