Definitions
Symbiosis is...
Use the 10% energy rule to determine the amount of energy a lion gets in the food chain if the producer has 5,000 units of energy.
grass--> worm --> bird --> snake ---> eagle --> lion
0.05 Units of energy
Which relationship is best represented by the symbol (+/0)
Commensalism
Which abiotic factor supplies all the energy for an ecosystem?
Sun
Create a food chain using the following organisms:
corn, chicken, worm, jaguar, dog,
corn -> worm -> chicken -> dog -> jaguar
A tertiary consumer, or any consumer at the top of the food chain is also known as a(n)
Apex Predator
How much energy does a producer start with before energy is transferred
100%
The relationship in which one specie benefits and the other is harmed is known as ___
Parasitism
FREE PASS
FREE PASS
Create a food chain consisting of animals within an aquatic ecosystem
____
This term refers to the highest level of ecological organization containing all ecosystems and life on earth
Biosphere
How much energy is lost in terms of the 10% rule? How is this energy lost?
90%
Lost as heat, movement, waste, or growth
Provide an example of a parasitic relationship in a Belizean ecosystem. (No ticks, fleas, or mosquito examples)
Tapeworm, vines on trees
Which trophic level primarily consists of herbivorous creatures?
Create a food web from organisms found in Belizean ecosystems including:
2 producers, 3 Primary consumers, 2 Secondary Consumers, and 2 Tertiary consumers
___
Define the 10% rule of energy transfer and use an example
The 10% rule of energy transfer refers to the concept that only 10% of energy is transferred from one trophic level to the next and the remaining 90% is lost.
What is the role of the sun in energy transfer?
It is the ultimate source of energy for all ecosystems, captured by producers.
Describe the relationship between a cow and an egret. Who benefits? How can this be represented?
Mutualistic. Egret gets food and cow's parasites are removed (ticks). Represented by the symbol (+/+).
Which trophic level serves as the base from which all other levels get energy?
Producers
Create a food web from organisms in local environments, in which a secondary consumer of one food chain can also be an apex predator in another food chain
=
How does a food chain differ from a food web
food chains are linear sequences in which energy is transferred from one organism to another as it moves up the trophic levels. Food webs are a complex network of interconnected food chains
Compare the rule of energy transfer to the number of organisms that belong to each trophic level? Why are there less amounts of apex predators?
Apex predators must consume more organisms to obtain energy needed to supply their body. Less predators means less competition.
Differentiate between all THREE types of symbiotic relationships
Mutualism - both benefit
Commensalism - One benefits, the other is unaffected
Parasitism- One benefit, the other is harmed
What is the difference between omnivores, carnivores, and herbivores? Where would most examples be see in the trophic levels?
Herbivores- only eat plants (1 consumers
Carnivores- only eat meat (mostly apex predators, 2 consumers)
Omnivores- eat both meat and plants (2 consumers... mostly)
Write the organizational levels in ecology in order, from smallest to largest
Organism
Population
Community
Ecosystem
Biome
Biosphere