Trophic levels
food Chains and webs
Ecological relationships!
Ecological relationships 2
Ecological succesion
100
What is at the bottom of the trophic level pyramid?
Hint: Herbivores eat this trophic level
Producer
100
What is the ultimate source of energy.
Hint: It is outside of earth
The Sun
100
Define symbiosis
A close relationship between two different organisms. Can help both or one of the organisms
100
In ecology what is the definition of "competition"?
An interaction between organisms when one ore more needed resources are in limited supply.
100
What is Ecological Succession?
The process of an ecosystem rebuilding after a disruptive event.
200
which trophic level are herbivores?
Primary Consumers
200
What do food chains and food webs show us?
The flow of energy from one organism to the other
200
What type of symbiotic relationship is occurring when both species benefit from interacting with one another?
Mutualism
200
What are the two types of "Competition" and how are they different.
The 2 types are Interspecific and Intraspecific.
Interspecific- Competition between different species in the same ecosystem,
intraspecific- Competition between the same species in the same ecosystem,
200
In primary succession "Lichens" are an example of _____________?
Pioneer species- The first producer to grow
300
Secondary consumers eat animals and plants. What is it called when an animal eats both meat and plants?
Omnivore
300
What is the top predator called in a food chain?
Quaternary consumer or apex predator
300
Mites, a very small insect, attaches to other larger insects. They attach to the other large insects to catch a ride. The larger insects are not harmed and the mite is helped because it gets a ride to a new location. What type of relationship is this?
Commensalism
300
Think about the "predator-Prey cycle". Why would a predators population increase?
In regards tot his cycle, it would increase because their is more prey then predators.
300
Which takes longer to reach a climax community, Primary succession or secondary Succession?
Primary succession
400
My niche is to break down dead matter. What am I?
Decomposer
400
Who would suffer the most if all the rabbits died in this food web? Why
The fox because it's only other food source are mice. Not the Hawk because it can still get its energy from mice and snakes.
400
The example below is what type of symbiotic relationship?
A mosquito eats the blood of the human for energy. the human provides the blood but gets hurt in the process and can get sick
Parasitism
400
If a resource is limited in a ecosystem, what are two possible effects it can have on organisms that live there?
Increased Competition, Decrease in population, organisms move to new location.
Other answers may be accepted
400
What are some similarities and differences between primary and secondary succession?
With Primary succession, all life and soil removed from disruptive events and it takes longer to reach climax. Whereas, secondary succession the soil remains and some life remains. It also takes less time to reach climax.
They are similar because they go though some of the same stages and are both cause by a disruptive event.
500
what is the difference between an Autotroph and a heterotroph?
autotrophs- Make their own food (Plants) to get energy
Heterotrophs- Cannot make their own food they must consume plants or animals for energy
500
Food chains and webs both show us the flow of energy from one organism to the next. How are a food chain and food web different?
A "food chain" is a single line, showing one path of energy from one organism to another. Shows 1 thing an organism gets its energy from
While a "food web" is many or all food chains in an ecosystem. They show the many things an organism can get energy from
500
Provide one example for each type of symbiotic relationship. Mutualism, commensalism and parasitism. You must be able to explain the interaction.
Answers may very.
500
What is "competitive exclusion"?
Also Provide an example of "competitive exclusion".
Competitive exclusion is when two organisms compete over a resource and one is forced to die and leave the area.
Example: lion chases off zebras from a watering hole not allowing them to drink.
Other Examples accepted
500
In primary succession lichen and moss are the first organisms that grow in an ecosystem. What do you think is typically the first nonproducer to come back to an ecosystem?
Insects and worms because they eat the pioneer species.