Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
adaptation
|
inherited trait that increases a population’s chance of survival and reproduction in a particular environment
|
|
|
analogous structures
|
structures that perform the same function but are not related
|
|
|
artificial selection
|
purposefully breeding plants or animals to get desired traits to be expressed
|
|
|
Charles Darwin
|
scientist who first proposed the theory that evolution by natural selection was the reason for the diversity of life on the planet in a paper
|
|
|
evolution
|
change over time
|
|
|
extinct
|
when the last organism of a particular species dies
|
|
|
fossils
|
preserved remains or imprints of ancient organisms
|
|
|
gradualism
|
slow; populations change gradually over time
|
|
|
homologous structures
|
structures from different organisms that are similar because they share a common ancestor
|
|
|
mutation
|
change in the sequence of the genetic code in DNA; caused by error in cell division and exposure to radiation or chemicals that can damage the genes of egg and sperm; inherited trait
|
|
|
natural selection
|
the way in which new species of organisms are created
|
|
|
niche
|
a habitat and role a population plays in that habitat
|
|
|
punctuated equilbrium
|
quick; population change quickly in shorter spurts of time due to more drastic changes in an environment over a short period of time
|
|
|
speciation
|
when a new species is created by natural selection
|
|
|
species
|
a group of organisms that and successfully breed and produce offspring that can also reproduce healthy and fertile offspring
|
|
|
taxonomy
|
the study of how organisms are grouped into those 7 categories (kingdom, phylum, etc.)
|
|
|
variation
|
the differences between individual members in a population; naturally occurs in a group of offspring and in a population as a whole
|
|
|
vestigial structure
|
inherited structures that no longer serve a function for the organisms
|
|
|
DNA
|
a nucleic acid that contains your genetic code; instructions for looking the way you do; composed of instructions in your cells
|
|
|
fossil record
|
fossils in the dirt
|
|
|
strata
|
layer
|
|
|
genes
|
a sections of those nitrogen bases that contain the instructions for a specific trait
|
|
|
genetic code
|
sequence of nitrogen bases in your DNA; it is very huge
|
|
|
sexual reproduction
|
2 parents required to reproduce; DNA in egg and sperm combine to form a new organism
|
|
|
asexual reproduction
|
some organisms reproduce needing only a bit of themselves
|
|
|
carbon dating
|
determines age of something using carbon 12 and 14
|
|
|
kingdom
|
largest, most inclusive category
|
|
|
species
|
smallest most specific category
|
