Ecology Unit Test Review Mixer 2025
Levels of an Ecosystem
individual, species, population, community, ecosystem, biome, biosphere
Interactions and competition
Biogeochemical Cycles/Abiotic factors
that influence an ecosystem
Sunlight
Climate
Water, Carbon, Nitrogen
Energy in an Ecosystem
Food web
Food chain
Autotroph- Producer
Photoautotroph. Chemoautotroph
Heterotroph- Consumer
Carnivore, Omnivore, Herbivore, detritivore
Decomposers
Energy pyramid= Populations energy transfer and loss
Trophic levels
Decomposers and all consumers
Organism Interactions
Niche
Habitt
Resources Biotic /Abotic
Nutrient cycles
Limiting Nutrient
Primary Productivity- chemical and photosynthetic
Biomass carbon storage and decomposition.
Interactions and competition
Competition
Interspecific competition
Competitive exclusion principle
Extinction vs evolution
Resource partitioning
Predation
Keystone predator
Predation defenses:
Camouflage, Chemical defenses,
Müllerian Mimicry, Batesian mimicry
Symbiosis
Mutualism, Commensalisms, Parasitism
Biomes
Tropical Rain Forest
Deciduous Forest
Coniferous forest
Tundra
Desert
Savanna
Temperate Grasslands
Population Ecology
Population Density
Exponential growth, Logistics Growth
Carrying capacity
Overpopulation
Density dependant and independent factors
Boom and Bust cycles
Density independent factors
Predator Prey relationships
Emigration, immigration
Life History Strategies K(like humans vs R like rats)
Human Population
World’s Population growth Carrying capacity
Carbon/ Ecological Footprint
Growth trends based upon age structure
Human Impact on the environment
Biodiversity
Threats: habitat destruction, Invasive species,
overexploitation and deforestation
Pollution: Soil, water, air, agriculture, mining
Fossil Fuels- Formation and types
Greenhouse effect
Alternative energy sources (pro’s and con’s)
Dead zones/Eutrophication
Sustainability Unit
Renewable energy and renewable types of energy. Refer to notes and class research please.
Tragedy of the commons.
Electric power generation.
Your carbon footprint and their impacts on the Earth’s climate.
Biomagnification and human exposure risks.
PFAS< Mercury, lead, micro plastics and your personal risk factors