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21 Cards in this Set

  • Front
  • Back
biology
the study of life
organization
the high degree of order within an organisms internal and external parts and in its interactions with the living world
cell
the smallest unit that can perform all life processes, cells are covered by a membrane and contain dna and cytoplasm
unicellular
describes an organism that consists of a single cell
multicellular
describes a tissue, an organ or organism that is madeof many cells
organ
structures that carry out specialized jobs within an organ system
tissues
groups of cells that have similar abilities anda tha allow the oragan to function
organelle
tiny structures that carry out functions necessary fot eh cell to stay alive
biological molecules
the chemical compounds that provide physical structure and that bring about movement, energy use and other cellular function
homeostasis
is the maintenance of a stable level of internal conditions ecen though environmental conditions are constantly changing
metabolism
the sum of all the chemical reactions that take in and transform energyand materials from the environment
cell division
is the formation of two new cells from an existing cell
development
the process by which an organism becomes a mature adult
reproduction
to reproduce new organisms like ones self
not essential to survival of an individual organism, however is essential to the species
characteristics of life
1. oranization and cells
2. Response to stimuli
3.homeostasis
4. metabolism
5. growth and development
6. reproduction
7. change through time
DNA
Large library
hereditary information is encoded in molecules deoxyribonucleic acid
gene
the short segment of dna that contains instructions for a single trait
sexual reproduction
hereditary information recomines from two orfanisms of the same species
asexual reproduction
hereditary info from differnt orfanisms is not combined- original and new are genetically the same
cell
small rooms
baby chess
second best dog