ecology Flashcards
(27 cards)
biotic
describes living factors in the environment
Abiotic
describes the nonliving part of the environment including water rocks light and temperature
Population
a group of organisms of the same species that live in a specific geographical area
community
all population of species that live in the same habitat and interact with each other
Ecosystem
a community of organisms and their abiotic environment
biosphere
the part of earth where life exists
Herbivore
an organism that eats only plants
Carnivore
an organism that eats animals
omnivore
an organism that eats both plants and animals
Food chain
the pathway of energey transfer through various stages as a result of the feeding patterns of a series of organisms
food web
a diagram that shows the feeding relationships between organisms in an ecosystem
Energy pyramid
a triangular diagram that shows an ecosystems loss of energy which results as energy passes through the ecosystems food chain
Carrying capacity
the largest population that an environment can support at any given time
prey
an organism that is killed and eaten by another organism
predator
an organism that eats all or part of another organism
Mutualism
a relationship between two species in which both species benefit
Commensalism
a relationship between two organisms in which one organism benefits and the other is unaffected
Parasitism
is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm,
Producers
plants use the energy in sunlight to make food.
Decomposers
a remain of any dead animal
Desert
a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life
Tundra
a vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen.
Temperate deciduous forest
a biome that is always changing.
Tropical rainforest
mainly located between the latitudes of 23.5°N (the Tropic of Cancer) and 23.5°S (the Tropic of Capricorn)