ecology Flashcards
biotic
describes living factors int the environment
abiotic
describes the nonliving part of the environment including water rocks light and tempeature
population
group of organisms of the same species that live in a specific geographical area
community
all the populations of species that live on the same habitat and interact with eachother
ecosystem
community of organisms and their abiotic environment
biosphere
the part of earth where life exists
herbivore
organism that eats only plants
carnivore
organism that eats animals
omnivore
organism that eats both plants and animals
food chain
pathway of energy transfer through various stages as a result of the feeding patterns of a series of organism
food web
diagram that shows the feeding relationships between organism in an ecosytems
energy pyramid
triangular diagram that shows an ecosystem loss of energy which results as energy passes through the ecosystems a food chain
carrying capacity
largest population that an environment can support an any given time
prey
organism that is killed and eaten by another organism
predator
organism that eats all or parts of another organism
mutilsm
relationship between two species in which both species benefit
commensalim
relationship between two organism in which one benefits and the other is unaffcted
parasitism
relationship between two species in which one species the parasite benefits form the other species the host which is harmed
26 svanna
grassland that often has scattered trees and that is found in tropical and subtropical areas where seasonal rains fires and drought happen
21 dessert
region that has little or no plant life long periods without any rain and extreme temperatures usually found in hot climates.
22 tundra
treeless plain found in the arctic in the antarctic or on the tops of mountains that is characterized by very low winter temperatures and short cool summers
temperate grassland
areas with low annual precipitation, fluctuating seasonal temperatures, and few trees.
temperate deciduous forest
a variety of temperate forest ‘dominated’ by trees that lose their leaves each year
tropical rain forest
forests near the equator that receive over 100 inches of rain a year and maintain high average temperatures
Coniferous forest
vegetation composed primarily of cone-bearing needle-leaved or scale-leaved evergreen trees, found in areas that have long winters and moderate to high annual precipitation
Decomposers
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
producers
They make their own food, which creates energy for them to grow, reproduce and survive.
