bob number 3 Flashcards
biotic
biotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
abiotic
abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems.
Population
is a sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment, such as birth and death rates, and by immigration and emigration.
Community
a community is a group or association of populations of two or more different species occupying the same geographical area at the same time, also known as a biocoenosis, biotic community,
Ecosystem
An ecosystem consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the system through photosynthesis and is incorporated into plant tissue.
Biosphere
The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth
Herbivore
an animal that feeds on plants.
Carnivore
an animal that feeds on flesh.
Omnivore
an animal or person that eats food of both plant and animal origin.
Food chain
A food chain is a linear network of links in a food web starting from producer organisms and ending at an apex predator species, detritivores, or decomposer species.
Food web
A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community. Another name for food web is consumer-resource system.
Energy pyramid
An ecological pyramid is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem
Carrying capacity
The carrying capacity of an environment is the maximum population size of a biological species that can be sustained by that specific environment
Prey
The prey in any ecosystem refers to the animals eaten by other animals. Different ecosystems are home to different prey species
Predator
Predation is a biological interaction where one organism, the predator, kills and eats another organism
Mutualism
symbiosis that is beneficial to both organisms involved.
Commensalism
Commensalism is a long-term biological interaction in which members of one species gain benefits while those of the other species neither benefit nor are harmed
Parasitism
the practice of living as a parasite in or on another organism
Producers
Producers are any kind of green plant. Green plants make their food by taking sunlight and using the energy to make sugar
Decomposers
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
Desert
A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life.
Tundra
In physical geography, tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons.
Temperate deciduous forest
Temperate deciduous or temperate broad-leaf forests are a variety of temperate forest ‘dominated’ by trees that lose their leaves each year.
Tropical rainforest
Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season
Coniferous forest
Temperate coniferous forest is a terrestrial biome defined by the World Wide Fund for Nature.
Savanna
A savanna or savannah is a mixed woodland-grassland ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close
Temperate grassland
Temperate grasslands are areas of open grassy plains that are sparsely populated with trees
