Download “brains” of the cell, the nucleus directs cell activities and contains

Study of interactions of living
organisms with one another and
with their physical environment
1
Ecology
2
place where a particular
population of a species lives
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Habitat
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all the members of one species
in a particular area.
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population
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the community of organisms
that live in an area along with
their non-living surroundings.
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ecosystem
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the number of species in a
specific area
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population density
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a factor in the environment
that causes the population to
decrease or go down. i.e. food
and water, living space,
weather
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limiting factor
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the many different species that
live together in a habitat
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Community
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major biological community
that occurs over a large area of
land
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Biome
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the physical aspects of a
habitat
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Abiotic
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the living organisms of a
habitat
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Biotic
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number of species living
within an ecosystem
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Biodiversity
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two or more species
live together
in a close, long-term relationship
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Symbiosis
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one organism feeds on and
usually lives on or in another,
does not usually kill the host
(ticks)
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Parasitism
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a symbiotic relationship in which
both species benefit (ants and
aphids)
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Mutualism
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one species benefits and the
other is neither harmed nor
helped
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Commensalism
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the act of one organism
feeding on another
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Predation
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the struggle for survival
between living things for the
limited resources.
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competition
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an animal that hunts and eats
other animals; i.e. lions are the
predators of zebras
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predator
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an animal that is hunted or
eaten by other animals; i.e.
mice are the prey of cats
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prey
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a change in the body or
behavior of a species making
it easier to survive. i.e.
poisonous jellyfish,
camouflage bugs, protective
shell, etc.)
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adaptation
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