Chapter 11: Biology Flashcards
the study of life and living organisms
biology
high degree of order including one or more cells
organization
adjustment when faced with physical or chemical change in the envorment
response to stimuli
the ability to maintain stable internal conditions
homostasis
use of energy to power life processes
metabolism
grown and increase in size
growth and development
production of new organisms like themselves
reproduction
change experienced without change in their basic genetic characteristics
change through time
a social movement advocating the genetic improvement of the human race through such practices as selective breeding, compulsory sterilization, forced abortion, and genocide.
eugenics
a belief system that claims that the first speck of life emerged from nonliving matter and slowly evolved into one-celled organisms, some of which, through eons of genetic mutations and natural selection, turned into more complex organisms and ultimately into human beings.
evolution
the belief that small, adaptive changes are capable of producing variations within the gene pool or a species.
microevolution
the belief that small, adaptive changes are capable of accumulating over time to produce entirely new species.
macroevolution
the belief that favorable traits can be passed on (or unfavorable traits eliminated) from one generation to the next strictly by chance.
genetic drift
the belief that favorable traits can be passed on (or unfavorable traits eliminated) when a migratory group breeds with a native group.
genetic flow
the process by which organisms better adapted for their environment tend to survive longer, reproduce, and pass along more favorable biological traits.
natural selection