Exam 1 Study Guide
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Last updated 9:53 PM on 11/29/22
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32 Terms
1
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7 characteristics of Life
has cells, maintains homeostasis, uses energy/ metabolizes, reproduces, grow/develop, adapt/evolve to environment, respond to stimuli in environment
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natural v social sciences
natural science is the study of the natural world. i.e. biology, physics, earth sciences.
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Theories v Law
theories explain how phenomenon happens, law explains that phenomenon always happens under certain conditions.
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biology
The study of life
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science
a system of acquiring knowledge
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homeostasis
process of keeping internal conditions stable and different from the environment
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hypothesis
an educated guess based on observation
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cell
A membrane bound unit separate from surroundings
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atom
smallest unit of a substance while still having a unique substance
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population
all the individuals of a species in the same area
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community
All the different populations that live together in an area
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species
a group of organism that can reproduce in nature and create fertile offspring
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how organisms are assigned to taxonomic rankings
morphology, genetic lineage (DNA)
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taxonomic rankings in order
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
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which taxonomic ranking is the broadest? Most specific?
Domain, Species
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taxonomy
the science of naming, describing, and classifying organisms
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Carl von Linn
father of taxonomy, binomial nomenclature
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first living organism on earth
bacteria
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this theory gave eukaryotes mitochondria and chloroplasts
endosymbiotic theory
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Mass extinctions caused the biodiversity we see today
true
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homologous structures
Structures in different species that are similar because of common ancestry.
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atomic number
number of protons in an atom
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nucleus
surrounded by ring of electrons, made of protons and neutrons
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mass number
total number of protons and neutrons in an atom
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dmitry mendeleev
1869 russian chemist; arranged elements by chemical properties into the periodic table
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saturated fats
"unhealthy"
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the body produces nonessential amino acids
true
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6 main elements of life
Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, Calcium
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monomers
small molecules that can be joined together to form more complex molecules
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polymers
macromolecules made of smaller units (monomers) that form long, repeating chains
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all living things on earth are (this element) based
carbon
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denaturation
the process of a complete, functioning protein unraveling due to extreme conditions that affect the weak hydrogen bonding
Note 
Flashcards (55)