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31 Cards in this Set

  • Front
  • Back
composed of many cells
MULTICELLULAR
composed of one cell
UNICELLULAR
examples of biotic factors
plants, trees, bacteria, etc.
a group of organs that function together
ORGAN SYSTEM
nonliving factors
ABIOTIC
the science that seeks to understand the living world
BIOLOGY
a pattern of growth and change that occurs over the organisms lifetime
LIFECYCLE
examples of unicellular organisms
BACTERIA
when two cells from different parents unite to form the first cell of a new organism
SEXUAL REPRODUCTION
examples of abiotic factors
WATER, SUNLIGHT, AIR, ROCKS, etc.
all the chemical reactions in an organism
METABOLISM
order of organization within a multicellular organism, from smallest to largest
cell, tissue, organ, organ system
order of organization beginning with organism, from smallest to largest
ORGANISM, POPULATION, COMMUNITY, ECOSYSTEM, BIOME, BIOSPHERE
when a new organism has a single parent that divides to form two organisms
ASEXUAL REPRODUCTION
ability to maintain a stable internal environment
HOMEOSTASIS
a community and its non-living surroundings
ECOSYSTEM
a group of cells that function together
TISSUE
an increase in size or amount of living material
GROWTH
the process of organisms producing new organisms
REPRODUCTION
any condition in an organisms environment that causes a response
STIMULUS or STIMULI
a reaction to a stimulus
RESPONSE
all ecosystems
BIOSPHERE
the smallest functional unit of life
CELL
7 characteristics of living things
1. cells
2. reproduction
3. DNA
4. life cycle (growth/development)
5. metabolism
6. response to stimulus
7. homeostatis
universal genetic code
DNA
living factors
BIOTIC
a single living thing
ORGANISM
populations that live together in a defined area
COMMUNITY
a group of organisms of the same type that live in an area and can interbreed
POPULATIOn
smallest unit of an organism considered to be alive
CELL
a group of tissues that function together
ORGAN