earth science vocab
what is a producer
organisms that make their own food using sunlight
what is a consumer
organisms that reproduce those or other work (primary, secondary, tertiary)
what is the Apex predator?
top of the food chain
what is a decomposer?
organisms that feed on the remains of ither organisms.
what is a food chain?
linear sequence of organisms through which nutrients and energy pass, as one organism eats another.
what is a food web?
all the food chains in a single ecosystem
define biomes
large areas by living and nonliving things. 5 major catagories.
define ecosystem
A group of living and nonliving things depend on each other to survive
which is bigger, a biome or an ecosystem
biome
what are the five major categories of biomes?
aquatic, grassland, forest desert, and tundra
what are the types of ecosystems?
artificial ecosystem, natural ecosystem, terrestrial ecosystem, and marine
define biotic
living things
what are the six types of biotic organisms?
grow and develop, made of cells, respond to stimuli require energy to reproduce, contain DNA
what is abiotic?
nonliving things like sunlight
what does ecological heirarchy mean?
The system which organizes the different levels within an ecosystem
define terrestrial and aquatic
terrestrial is land based and aquatic is water-based
what is a community?
biotic components within an ecosystem, all members all species
define population
all members of a single species in an ecosystem
what is an organism?
A single member of a species
what is species?
A group of closely related organisms that can reproduce with eachother.
what is a habitat?
The place where an organism lives
what is a niche?
organisms role in an ecosystem
define biotic interactions
interactions between two biotic organisms in a ecosystem
what is energy flow?
The transfer of energy from one organism to another
what is an example of energy flow?
Predator eating prey
what are the trophic levels?
The levels in a food chain
what are the four trophic levels?
1. producers. 2. primary consumers. 3. secondary consumers. 4. tertiary, consumer.
what is a detrivore?
organisms that get energy from dead organisms
define biodegration
Breaking organic materials down to reusable nutrients
what is bioaccumulation?
build up of pollutions and harmful chemicals in an organism
what is bioremidiation
using organisms to break down harmful chemicals
what is biomagnification
higher trophic levels accumulate the pollutants contained in lower trophic levels.
what is an abiotic interaction
relationship between abiotic and biotic components of an ecosystem.
what is bioremediation
using organisms to break down harmful chemicald
what is an abiotic interaction
relations between abiotic and biotic components of an ecosystem
what are nutrients
chemicals required for organisms survival and growth
what are stores
where nutrients accumulate
what is an exchange
flow from one store to another
what is sediment
a rock that forms when minerals and dead material from earths surface accumulate on the ocean floor
what is erosion
break down of rock by wind or rain
define leeching
type of erosion specific to soil, water sucks the nutrients out of soil
what is the primary store for carbon and phosphorus?
sediment
what is the primary store for nitrogen?
the atmosphere