Name the ecological levels of organization in order from smallest to largest.
What are organism, population, community, ecosystem, and biosphere?
100
The definition of a trophic level
What is a feeding level?
100
Two ecosystems with upright triangular numbers pyramids.
What are ocean and grassland?
100
The difference between bioaccumulation and biomagnification.
Bioaccumulation deals with toxins entering and getting stored in one organism. Biomagnification is the increase in concentration of toxins as you go up a food chain.
100
Define predation.
What is behavior of one animal feeding on another?
200
Name two things that get larger with each ecological level of organization?
What are number of things and types of things.
200
A predator at the quaternary or tertiary consumer level.
What is an apex predator?
200
The amount of biomass 20 shrews have if they each weigh 0.02 kg each.
What is 0.4 kg?
200
Name the type of organism must susceptible to biomagnification and one example of this type of organism.
What is top of the food chain and owl or tuna?
200
Name three types of symbiosis.
What are mutualism, commensalism, and parasitism?
300
The difference between a food web and a food chain.
What is interconnected paths (food web) vs single path (food chain)?
300
The trophic level of an herbivore/
What is a primary consumer?
300
Name an ecosystem with a numbers pyramid that is wider in the middle than at the top or the bottom.
What is an oaktree or deciduous forrest ecosystem?
300
Name four characteristics of a toxin that bioaccumulates.
What is harmful to organism, long-lived, mobile, and fat soluble?
300
Some species of barnacles attach themselves to sea turtles or whales. As the whales or sea turtles travel, the barnacles gain access to food in nutrient-rich waters. The host neither benefits nor is harmed.
What is commensalism?
400
The difference between a producer and a consumer.
What is making its own food (producer)?
400
State the 10% rule.
What is a trophic level only gets 10% of the energy available to the level below it?
400
Why is the biomass pyramid of an ocean inverted?
What is large whales and other apex predators? (top trophic level has large heavy organisms)
400
Why is a water soluble poison less dangerous to an ecosystem than a fat soluble one?
Water soluble poisons can be excreted through urine.
400
Name 4 resources organisms compete for.
What are water, living space, food and mates.
500
The most important members of a food web or chain.
What are producers? (Producers convert the sun's energy into food. No other members of the web can do this).
500
Why an energy pyramid is always an upright triangle.
What is energy decreases as you go up trophic levels?
500
Why many scientists prefer biomass pyramids to numbers pyramids.
What is reflects energy distribution better? (Same shape as energy pyramid for most part, biomass tends to go down as energy goes down EXCEPT ocean)
500
Name a country that is responsible for much of the mercury in our atmosphere.
What is China
500
How is parasitism different from mutualism?
In parasitism one organism gains and the other is harmed. In mutualism, both organisms benefit.