chapter 15 from review 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 earths 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
Herbivore
model used by ecologists to show all possible feeding relation ships at each trophic level- more complex
food web
when two organisms are in close range or always in contact
symbiosis
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
share only indirect relationship
neutralism
water moves from the soil
and from the water surfaces of the earth, through the atmosphere, and then back to the earth again
hydrologic cycle or another name for the 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 savanna’s
Grasslands
Biome does not have salt in its water
Freshwater
What is a place where life is abundant and saltwater and freshwater meet
Estuary
what are the first species to grow/appear after a area has been destroyed?
Pioneer species
