science test Flashcards
the study of how living things interact with one another and with their physical environment
ecology
an organisms environment or home
habitat
thin layer in the Earth’s surface where life exists
biosphere
basic unit of ecology
ecosystem
smallest living unit of the biosphere
organism
what are the abiotic factors
soil, radiation, water, temperature, wind, atmosphere
an ideal range of temperature or other factors also known as the thriving range
optimum range
eat only meat
carnivore
eat only plants
herbivores
model used by ecologists to show all possible feeding relationships at each trophic level- more complex
food web
share only indirect relationship
neutralism
relationship in which one organism is being helped and the other is neutral
commensalism
relationship in which one organism eats hunts and kills the other organism
predation
a relationship in which grazing animals feed on plants by cropping portions of the plant without killing it
herbivory
water moves from the soil and from the water surfaces of the earth, through the atmosphere, and then back to the earth
hydrologic cycle (water cycle)
what biome is known for its permafrost
arctic tundra
what biome is known for its clear seasons
temperate deciduous forest
what are the grasslands in Africa
savanna
what biome is known for having salt in its water
marine
what biome is known for savannas
grasslands
what biome does not have salt in its water
freshwater
what is a place where life is abundant and saltwater and freshwater meet
estuary
what is complete succession called
primary
mans role on the earth
dominion