mod 5 Flashcards
all living things are composed of either one or more
cells
Cellular complexity
organisms undergo different stages, which
follow a systematic process from birth to maturity
growth and development
- to ensure continuity of life, organisms undergo reproduction
that pass traits from one generation to next.
reproduction
all organisms are very sensitive to
different stimuli. This response refers to any movement to stimuli in the
organisms’ own volition.
Irritability/ Ability to response to stimuli
The ability of the organism to maintain balance in different
environmental condition
. Homeostasis
chronostratic
relative time
subdivisions of the Earth’s geology in a
specific order based upon relative age
relationships
relative dating
chronometric
absolute time
numerical ages in “millions of years” or
some other measurement.
absolute time
can be directly observed or seen
direct evidence
does not involve actual observation of evolution but
from which evolution may be inferred
indirect evidence
is the study of the distribution of species on Earth in the past
and present, and how the distribution is affected by abiotic factors such as habitat,
climate and terrain. The field is divided into three disciplines of biogeography:
historical, ecological and conservation.
biogeography
Historical biogeography is also called
paleobiogeography
father of biogeography
Afred Russel Wallace
h states that in undisturbed rock sequences the bottom
layers are older than the top layers
law of superposition
provide solid evidence that organisms from the past are not the same
as those found today
fossil
All living cells have the same basic ___________and use the same genetic code
DNA Structure
Proteins produced from genes all come from the
same set of
amino acids
evolved
from a common ancestor
homologous structure
defined as similar biological structures or sequences
in different taxa, thus implies divergent evolution.
homology
is the study of the development, structure, and
function of embryos.
embryology
Some characters that are passed on through generation will not
be “perfectly” adapted based on evolutionary theory.
contrivances
is a molecule used to transport oxygen
hemoglobin
is used to store oxygen
myoglobin
is a source of new alleles in a population.
mutation
a change in the DNA sequence of the gene
mutation
All the places where species live is known as
species distribution
the flow of
alleles in and out of a population resulting from the migration of individuals or
gametes.
gene flow
effect of chance
genetic drift
works by selecting for alleles that confer beneficial traits or behaviors, while
selecting against those for deleterious qualities
natural selection
introduce new allele into a population
mutation
stems from the chance occurrence that some individuals have
more offspring than others and results in changes in allele frequencies that are random
in direction.
genetic drift
When individuals leave or join the population, allele frequencies can change
as a result of
gene flow
