Ecology Flashcards
(27 cards)
biotic
describes living factors in the enviroment
Abiotic
describes the nonliving part of the environment,
population
all the inhabitants of a town, area, or country
community
a group of people living in the same place or having a particular characteristic in common
ecosystem
a biological community of interacting organisms and their physical environment
biosphere
the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
herbivores
eats only plants
carnivores
eats only meat
omnivores
eats plants and animals
food chain
a hierarchical series of organisms each dependent on the next as a source of food
food web
a series of organisms interrelated in their feeding habits, the smallest being fed upon by a larger one, which in turn feeds a still larger one
energy pyramid
diagram that shows an ecosystem’s loss of energy
carrying capacity
the number of people, other living organisms, or crops that a region can support without environmental degradation
prey
an animal that is hunted and killed by another for food
predator
an animal that naturally preys on others
mutualism
symbiosis that is beneficial to both organisms involved
commensalism
an association between two organisms in which one benefits and the other derives neither benefit nor harm
parasitism
the practice of living as a parasite in or on another organism
producers
organisms that use sunlight directly to make food
decomposers
organisms that get energy by breaking down dead organisms
desert
a dry, barren area of land, especially one covered with sand, that is characteristically desolate, water less, and without vegetation
tundra
a vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen
Temperate deciduous forest
dominated by trees that lose their leaves each year. They are found in areas with warm moist summers and cool winters
tropical rainforest
a tropical woodland with an annual rainfall of at least 100 inches (254 centimeters) and marked by lofty broad-leaved evergreen trees forming a continuous canopy