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Organisms that obtain their nutrients by
breaking down wastes and dead matter.
Decomposers
Diagram which shows the flow of energy
from one organism to the next.
Food Chain
Describes relationships between two
species that share an environment.
Symbiosis
States that in undisturbed sedimentary
rock layers, the oldest rock is at the
bottom and the youngest rock is at the
top.
Law of Superposition
Body parts that no longer appear to play
a role in the body functions of an
organism.
Vestigial Structures
A symbiotic relationship in which one
organism benefits and the other is
harmed.
Parasitism
Chemical substance that slows or
prevents the growth of micro-organisms
such as bacteria or fungi.
Antibiotic
Body parts of different organisms that
have a similar structure, but not a similar
function.
Homologous structures
Refers to the variety in the number of
different kinds of species living on earth.
Biodiversity
The physical or nonliving parts of an
environment.
Abiotic factors
A protein shell that encloses a nucleic
acid.
Capsid
Type of feeding relationship in which
one organism uses another organism as
it’s food source.
Predation
A group of organisms that share similar
characteristics and that can interbreed to
produce fertile offspring.
Species
Vascular tissue that moves water &
nutrients from the ground upward in the
plant.
Xylem
The study of embryos.
Embryology
The living parts of an environment.
Biotic Factors
A symbiotic relationship in which both
species benefit from the interaction.
Mutualism
A consumer that feeds on both plants and
animals.
Omnivore
Particle that consists of a nucleic acid
enclosed within a protein shell that
requires a living cell in order to
reproduce.
Virus
Remains or evidence of organisms that
lived in the past.
Fossil
Specific area where a species lives and
functions in a biological community
Niche