VOCAB
RANDOM
VOCAB #2
VOCAB #3
ENERGY FLOW AND THE ECOSYSTEM.
100
A thin layer of water,air or land on the earths suface.
What is a biosphere
100
characteristics that enable a living organism to survive and reproduce
What is an adaptation?
100
the interaction between members of two different species that live together in close association
What is symbiosis?
100
a harmful interaction between two or more organisms that can occur when organisms compete for the same resource
What is competition?
100
each step in a food chain
What is a trophic level ?
200
contains many ecosystems
What is a biome
200
a large area or body of water that has a large variety of organisms.
What is biodiversity?
200
the development of a number of new species from one common ancestor
What is adaptive radiation?
200
plants animals or micro organisms that are transported intentionally or by accident into regions in which they did not exist previously.
what are invasive species?
200
organisms that eat plants and other organisms
What is a consumer
300
a land based biome
What is a terrestrial biome?
300
consumers that feed at every trophic level, obtaining their energy and nutrients by eating dead organic matter.
What are detrivores?
300
a mature community that continues to change overtime
What is climax community?
300
physical parts or features of an organism that enable it to survive and reproduce.
What are structural adaptations?
300
organisms that obtain energy from the sun
What is a primary consumer?
400
the best adaptive members of a species will reproduce
What is natural selection?
400
succesion that occurs as a result of a disturbance to an area that already has soil and was once the home of living organisms.
What is secondary succession?
400
living organisms change as the abiotic and biotic components in their environment change.
What is ecological succession?
400
an abiotic factor that affects the temperature and the precipitation and therefore influences the characteristics of biomes
What are ocean currents.
400
the breaking down of dead organic matter by organisms such as bacteria
What is biodegradtion?
500
reduces the movement of air water and soil organisms in soil, hindering the growth of plants
What is soil compaction?
500
plant pollination,wildlife movement and reproduction are adversely affected
What is habitat fragmentation?
500
species that greatly affect population numbers and the health of an ecosystem
What are keystone species
500
show the flow of energy from plant to animal and from animal to animal.
What are food chains?
500
the percentage in a food pyramid of energy that is lost from trophic level to trophic level
What is 90%?
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