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CMCBiologyEcology

Ecology Content

QuestionAnswer
Ecology The study of interactions that take place between organisms and their environment.
Abiotic Factor The nonliving parts of an organism's environment.
Biotic Factor All the living organisms that inhabit an environment.
Organism Anything that possesses all the characteristics of life.
Population A group of organisms, all of the same species, which interbreed and live in the same place at the same time.
Community All the populations of different species that live in the same place at eh same time.
Ecosystem Populations of plants and animals that interact with each other in a given area with the abiotic components of that area.
Biome Specific areas around the world where populations live.
Biosphere The portion of Earth that supports life.
Symbiosis Relationship where two or more organisms live together.
Parasitism One organism feeds off another and harms/kills it.
Mutualism Relationship where both members benefit.
Commensalism Relationship where one organism benefits and the other is neither harmed nor helped.
Predator/Prey Relationship Where one organism hunts/kills the other.
Competition Relationship where two organisms/species compete for the same resources.
Niche The job/occupation on an organism.
Habitat Where an organism lives.
Producers: AKA Autotrophs.
Producers: Job Use energy directly from the sun to manufacture food. Photosynthesis!
Consumers: AKA Heterotrophs.
Consumers: Job Organisms that obtain their energy from other organisms.
Scavengers (Detritivores) Animals that eat other animals that are already dead. (Vultures, buzzards, ants, beetles).
Decomposers (Detrivores) Organisms that break down the complex compounds of dead and decaying plants and animals. (Protozoans, bacteria, fungi).
Carnivores Organisms that eat other animals.
Omnivores Organisms that eat plants and animals.
Herbivores Organisms that eat plants.
Food Chain A simplified model that shows how energy and matter move through an ecosystem. No more than 5 links.
Trophic Levels Represent links in a food chain.
Food Web Expresses all the possible feeding relationships at each trophic level. More realistic.
Ecological Pyramid Shows how energy is used in an ecosystem.
Energy Transfer Only 10% of energy is transferred from one tropic level to another.
Biomagnification As something is passed up the food chain the concentration increases. (Pesticides, mercury).
Evaporation Sun heats up water, turns it into vapor or steam.
Precipitation Rain, snow, sleet, hail.
Respiration Water given off into the environment from humans.
Infiltration Water that seeps into the earth.
Condensation Water vapor condenses around dust particles, forms clouds.
Surface Runoff Water flows from the land back to the sea.
Groundwater Water remaining underground.
Transpiration Plants absorb water, some evaporates from leaves, adding to water vapor in the air.
Carbon is converted by... Photosynthesis.
Carbon is released by... Respiration, Combustion, Weathering.
Permafrost Dirt always frozen.
Savannah Tropical grassland.
Prairie Temperate grassland.
Ecological Succession A series of more or less predictable changes that occur in a community over time.
Primary Succession Succession that begins in an area with no remnants of an older community.
Pioneer Species The first species to colonise barren areas. (Lichen).
Secondary Succession A disturbance affects the community without completely destroying it.
How can natural disasters be good for the environment? Fire can stimulate seeds to germinate.
What does Secondary Succession eventually end in? Climax Community.
Created by: UtauxIkuto
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