Symbiosis and Populations
The symbiotic relationship in which one organism benefits and another is harmed
parasitism/predation
Bottom-most tier on trophic pyramid is called?
1st trophic level or producers
use solar or chemical energy to create food sources
primary producers
No farming, wandering tribes, lived with nature
Hunter-Gatherers
Plant eaters and meat eaters
herbivores and carnivores (not omnivores)
ecology focuses on the __________ among organisms and their environment
relationships/interactions
An ecosystem includes both biotic and ___ factors
abiotic
Organisms that eat producers
consumers (maybe decomposers)
Name two major societal revolutions in history
agricultural and industrial
A species from another area that has few or no limiting factors
Invasive
Population refers to the number of organisms in a certain area at a certain ____
time
A group of ecosystems with similar climates and terrain?
Biome
A food chain is limited by the ___% rule
10
Permanent settlements became possible
Agricultural Revolution
Name 3 limiting factors
temperature, humidity, soil type, food availability, predators, climate, oxygen levels and more
A symbiotic relationship in which one both benefit
commensalism
A term for all living things on Earth
Biosphere
___% of the energy stored in an organism is lost when it is consumed
90
Air and water became polluted globally
Industrial Revolution
3 ways non-native species harm ecosystems?
Population outcompetes native species, harms native species, disrupts food webs,
Conditions that prevent a population from increasing are called?
limiting factors
List 5 levels of ecological organization from population to biosphere
community ecosystem biome
A pattern of food chains showing the energy flow in an ecosystem
food web
Ecology studies relationships between ___ and ___
organisms (biotic) and environment (abiotic, physical surroundings)
Latin and common name for a tree in parking lot
Varies