VOCAB TEST (12-2-20) Flashcards
time it takes for half of the unstable atoms in a sample to decay
half-life
measures the age of a rock/fossil in years
absolute dating
estimating age of rocks/fossils
relative dating
group of mammals including humans, monkeys, apes, and lemurs
primates
type of primate characterized by bipedalism, longer lower limbs, and lack of a tail
hominids
long and distinct period of time
era
unit of geological time during which a rock series is deposited (?)
epoch
science of naming, describing, and classifying organisms
taxonomy
can survive extreme environments
archaebacteria
doesn’t have a nucleus
prokaryote
has nucleus
eukaryote
eukaryotic, belongs to kingdom protista
protists
an organism whose cells have nuclei, rigid cell walls, and no chlorophyll and belongs to the kingdom fungi
fungus
a form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size
binary fission
producers, usually in water, contains the green pigment chlorophyll but come in more than green
cyanobacteria