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Biology
The study of life
Observation
information gathered by using one of the five sense, or the process of gathering such info.
Interpretation
The explanation of meaning given to a set of observations, affected by ones worldview
Worldview
the perspective of presuppositions a person uses to view and interpret the world
Model
a simple workable representation of a usually complex object or concept
Theory
a model that attemps to explain a set of observations
Law
a description based on repeated observations of the relationships between 2 or more phenomena
Scientific Method
an orderly way of investigating phenomena by using measurable and repeatable observations to test a hypothesis
Hypothesis
A simple testable statement that predicts an answer to a questions being investigated using the scientifict method
Survey
a subset of observations gathered from within a larger possible set of data
Environmentalism
those who seek to improve and protect the quality of the natural environment
Conversvation
the preservation and wise use of natural resources
Biotechnology
the use of technology to enchance living organisms
Bioethics
the study of ethical situations in biology and medicine
Chemistry
the study of matter and the changes it experiences
Matter
the physical stuff that makes up the universe
Temperature
a measurement of the average speed of particles within a substance
Entrophy
the tendancy of energy to disperse
Bond
stored chemical energy that holds 2 atoms together
Compound
a pure substance made of 2 or more elements chemically combined
Diffusion
particles are in constant random motion and matter tends to spread things out (Brownian Motion)
Catalyst
a substance that changes the rate of a chemical reaction
Enzyme
a special class of catalysts occuring in living things
Organic Compound
Molecules that contain carbon covalently bonded to other elements
physical
___________________ change does not change matter identity
a substance used to reduce a catalysts undesierable effects
what is a ihibitor
conhesion
Attraction between molecules of the same substance
adhesion
An attraction between molecules of different substances
unsaturated fats
Lipids that have at least one double bond and don't have the max number of hydrogens
saturated fat
have only a single bond
carbons, hydrogens, oxygens
carbohydrates are composed of
smaller organic compounds
protiens are polymers of ________________________________
a central carbon bonded to 4 groups, an amino group, a carboxylic acid group, and hydrogen group
amino acids are composed of
a base with nitrogen in it, a sugar and a phosphate
nucleotides are composed of
biosphere
part of Earth in which life exists
ecology
The study of how living things interact with each other and their environment
biodiversity
The number of different species in an area
detritus
Dead organic matter (the waste product of plant and animals)
biotic factors
living parts of an ecosystem
aboitic factors
non-living parts of the environment
population
A group of individuals that belong to the same species and live in the same area
community
All the different populations that live together in an area (living things that inhabit the same ecosystem)
Sustanability
The ability to keep in existence or maintain. A sustainable ecosystem is one that can be maintained
nitrogen fixation
bacteria converted to nitrogen in the air, into a usable form
transpiration
Evaporation of water from the leaves of a plant
population density
Number of individuals per a certain area
limiting factors
environmental factors that restrict population growth
carrying capacity
Largest number of individuals of a population that a environment can support
primary succession
succession that occurs on surfaces where no soil exists, barren, has nothing left in the landscape
secondary succession
reestablishment of a damaged ecosystem in an area where the soil was left intact
pioneer species
The first species to populate an area
climax species
stable, long-lived species that mark the end of succession
logistical growth
expotiential growth
doesn't contain limiting factors and carrying capacity
Scientific Method
ask a question, research, Create a hypothesis, test hypothesis, Analyze results and draw a conclusion, publish results
cytology
the study of cells
spontaneous generation
Hypothesis stating that life could arise from nonliving matter
preformation
every germ cell contains the organism of its kind in a minature version that development involes merely an increase in its size
Robert Hooke
made the term "cell"
cell theory
idea that all living things are composed of cells, cells are the basic units of structure and function in living things, and new cells are produced from existing cells
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