90% per trophic level.
What percentage of energy is lost between trophic levels?
Ryan wants a cheeto but Robert is hogging the bag. Ryan aggressively jostles the bag out of Robert's hands and runs away screeching a warrior's victory cry.
What is an example of COMPETITION?
Biotic
What do you call living things?
These are the pioneer species of primary succession.
The ability of an organism to survive variations in the environment.
What is ADAPTABILITY or TOLERANCE or RESILIENCE.
They point towards the flow of energy.
What is an example of MUTUALISM?
A hawk and an owl live in the same ecosystem. One hunts during the night while the other hunts during the day. Because they both have different jobs, they do not compete with each other for resources.
What is an example of a NICHE?
A slow, progressive change in an environment that does not begin with any fertile organic material. It could take millions of years.
What is PRIMARY SUCCESSION?
When animals and shade-tolerant trees can survive.
What is the CLIMAX COMMUNITY in primary succession?
It is lost as heat to the environment.
What happens to the 90% of energy not reserved between trophic levels?

What is an example of COMMENSALISM?
What is a HETEROTROPH?
Biosphere, biome, ecosystems, community, population, species
What are the levels of ecology?
An example would be that a kangaroo rat can survive without drinking any water, but it must obtain moisture from its food. This is to its benefit in its native environment.
What is an example of SELECTIVE-ADAPTATION for a desert environment?
What is a benefit of a food web over a food chain?
A dodder vine, Cuscuta europaea coils around a nettle, Urtica dioica, ready to puncture its stem and draw out nutrients to survive.
What is an example of PARASITISM?
An organism that preys on primary consumers.
What is a SECONDARY CONSUMER?
When all of the niches possible in an ecosystem are filled.
What is a CLIMAX COMMUNITY?
Very high temperatures, low precipitation, sparse vegetation, and little available food would all be examples.
What would examples of LIMITING FACTORS in a desert ecosystem be?
What is the function of Fungi?
The frogs in the tank on my desk hunt the crickets I drop in there from time to time.
What is an example of PREDATION?
Anything that is photosynthetic or chemosynthetic.
What type of organisms are AUTOTROPHS?
Why are lichen the pioneer species of primary succession?
When soil is already present this process goes much faster.
What is SECONDARY SUCCESSION and how does it differ from primary succession?