Trophic Energy
Levels of Life
Symbiotic Relationships
Limiting Factors
Random
100
What is another word for autotroph?
Producer
100
What is the term for more than one population of different species?
Community
100
What two symbiotic relationships are when one organism is helped and one is harmed?
Predation and parasitism
100
What is a limiting factor?
Something that stops the population from growing or decreases its growth
100
What is an invasive species?
A species that does not belong to an ecosystem and causes it harm
200
What is the difference between food chain and food web?
Food chain = one pathway of energy, food web = many interactions between multiple organisms
200
Which level of organization includes all the biomes on Earth?
Biosphere
200
What type of relationship is represented by a sea anemone providing protection to a clownfish while a clownfish keeps away predators of anemone?
Mutualism
200
What is a carrying capacity?
The maximum number of individuals an environment can sustain over time
200
What often allows invasive species to outcompete native ones?
Invasive species often have no natural predators
300
What are the 5 types of heterotrophs?
Carnivore, omnivore, herbivore, scavenger, decomposer
300
What are the two major components of an ecosystem?
Abiotic and biotic factors
300
What are the 5 types of symbiotic relationships?
Mutualism, predation, parasitism, competition, commensalism
300
What are two density-independent limiting factors?
phenomena, abiotic factors, weather
300
How can a keystone species be defined?
A species with a disproportionately important role compared to its population size
400
What are the two trends that can be displayed on a trophic pyramid? (You could draw a trophic pyramid and label the two trends)
As you go up a trophic pyramid, energy and population size decreases
400
Order these from largest to smallest: population, community, individual, ecosystem
ecosystem, community, population, individual
400
Why is competition a lose/lose relationship?
Both organisms have to spend energy and other resources to compete, even if one "wins"
400
What is the difference between density dependent and independent limiting factors?
Density-dependent depends on (may worsen) population size while independent does not and has a blanket effect no matter population size
400
How would lions and plants be affected if wild cats decreased in this ecosystem?
Plants would increase, lions would decrease
500
What is the energy of a producer if a secondary consumer has 600 J? You MUST show work using a trophic pyramid
60,000 J
500
Why are abiotic things such as the sun not usually included in food webs even if they may provide organisms energy?
They are not being consumed/eaten
500
What type of relationship does this image represent, with a frog using a mushroom as cover from the rain?
Commensalism
500
What type of growth are lines A and B?
A is exponential, B is logistic
500
What trophic level do keystone species usually occupy and why?
They are usually secondary consumers because they eat some organisms and some organisms eat them, they are a cornerstone/backbone that keeps the ecosystem balanced