science Flashcards
biosphere
includes all parts of earth in which life exsists
ecology
the study of natures organisms that live in those houses based on energy and nutrients
species
a group of similar organisms that can breed and produve fertile offspring
population
a group of individuals that belong to the same spicies and live in the same area
community
an assemblage of different populations that live together in a defined area
ecosystem
all the organisms that live in a place together with their physical environment
biotic factor
any living part of the environment with which an organism might interact
abiotic factor
any nonliving part of the environment such as sunlight, heat, precipitation, humidity, wind or water , and soil type
atmosphere
include all the gases that surround earth
hydrosphere
consists of all earth’s fresh water and salt water including water vapor and rain in the atmosphere, water underground and ice
geosphere
includes all the usually solid stuff rocks, continents and the ocean floor
climate
defined by patterns and averages of temperature, precipitation, clouds, and wind over many years
weather
short term changes in temperature, precipitation, clouds, and wind over many years
greenhouse effect
process in which certain gases trap sunlight energy in earth’s atmosphere as heat
biome
the homes of organisms into ten different regional climate communities
canopy
a dense leaf
understory
shorter trees and vines form this layer
humus
a material formed from decaying leaves and other organic matter
taiga
boreal forests
permafrost
a layer of permanentley frozen subsoil
photic zone
the sunlit region near the surface in which photosynthesis can occur
aphotic zone
below the photic zone where photosynthesis cannot occur
plankton
a term that includes floating algae and animlas called zooplankton
wetland
an ecosystem in which water either covers the soil or is present at or near the surface for at least part of the year