Studied by 3 people7 characteristics of Life
has cells, maintains homeostasis, uses energy/ metabolizes, reproduces, grow/develop, adapt/evolve to environment, respond to stimuli in environment
natural v social sciences
natural science is the study of the natural world. i.e. biology, physics, earth sciences.
Theories v Law
theories explain how phenomenon happens, law explains that phenomenon always happens under certain conditions.
biology
The study of life
science
a system of acquiring knowledge
homeostasis
process of keeping internal conditions stable and different from the environment
hypothesis
an educated guess based on observation
cell
A membrane bound unit separate from surroundings
atom
smallest unit of a substance while still having a unique substance
population
all the individuals of a species in the same area
community
All the different populations that live together in an area
species
a group of organism that can reproduce in nature and create fertile offspring
how organisms are assigned to taxonomic rankings
morphology, genetic lineage (DNA)
taxonomic rankings in order
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
which taxonomic ranking is the broadest? Most specific?
Domain, Species
taxonomy
the science of naming, describing, and classifying organisms
Carl von Linn
father of taxonomy, binomial nomenclature
first living organism on earth
bacteria
this theory gave eukaryotes mitochondria and chloroplasts
endosymbiotic theory
Mass extinctions caused the biodiversity we see today
true
homologous structures
Structures in different species that are similar because of common ancestry.
atomic number
number of protons in an atom
nucleus
surrounded by ring of electrons, made of protons and neutrons
mass number
total number of protons and neutrons in an atom
dmitry mendeleev
1869 russian chemist; arranged elements by chemical properties into the periodic table
saturated fats
"unhealthy"
the body produces nonessential amino acids
true
6 main elements of life
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Calcium
monomers
small molecules that can be joined together to form more complex molecules
polymers
macromolecules made of smaller units (monomers) that form long, repeating chains
all living things on earth are (this element) based
carbon
denaturation
the process of a complete, functioning protein unraveling due to extreme conditions that affect the weak hydrogen bonding
Note 
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