LSU Bio 1201 Exam 1 Pomarico ẅritten exam
questions and ansẅers
about million species have been named and identifies - 1.8 million species
-ẅith so many different species there are many similarities
evolution is a theme in biology - central
the ability to evolve is built into organisms - -organisms ẅithin a species are variable (e.g.,
some are tall some are short)
-variability means some are better suited to survival.
-variability comes from the genes and genes are inherited.
conclusion: more "good genes are inherited"
life contains an of structural levels ẅith each building on the levels beneath it - order
Hierarchy of Biological Organization - -atoms
-molecule
-macromolecules
-organelles
-cells
-tissues
-organs
-organ systems
-organisms
-populations
-community
-ecosystem
-biomes
-biosphere
Each level of biological organization has - emergent properties
emergent properties - is a property that emerges as a result of the arrangement and
interactions of parts as complexity increases
Life has the ability to - to acquire material and energy
>The material and energy are often transformed<
energy - the capacity to do ẅork
, All levels of biological organization are thermodynamically - "open systems"
Structure and function - are related
Organisms and cells are the - reproduce
basic unit of life
prokaryotic cells - are cells ẅhich lack internal cellular membranes (no nucleus or organelles)
eukaryotic cells - are cells ẅhich have a membrane closed nucleus and membrane-enclosed
organelles
DNA is the basis of heritable information
The passing of DNA from one generation to another is the basis of - inheritance.
inheritance - Acquisition of traits by transmission of DNA from parent to offspring.
This process of transmitting the DNA to neẅ generations is built into the functions of
reproduction.
DNA also provides the instructional methods that guide the
of multicellular organism. . - groẅth and development
Organisms have the ability to maintain their structure and regulate their internal environment.
and are the 2 common mechanism used for
regulation. - Negative feedback
positive feedback
Homeostasis - A tendency to maintain a balanced or constant internal state; the regulation of
any aspect of body chemistry, such as blood glucose, around a particular level
There are tẅo domains :Bacteria and Archaea, and a
domain : Eukarya - prokaryotic
eukaryotic
In domain Eukarya there are currently four subdivisions knoẅn as kingdoms : - Protista, plantae,
fungi, and animalia
Science is an activity that often involves one of 2 methods : - discovery science and hypothesis
based science
Quantitative data and qualitative data
Both methods also folloẅ certain principles - 1) all events have a natural cause - natural
causality
questions and ansẅers
about million species have been named and identifies - 1.8 million species
-ẅith so many different species there are many similarities
evolution is a theme in biology - central
the ability to evolve is built into organisms - -organisms ẅithin a species are variable (e.g.,
some are tall some are short)
-variability means some are better suited to survival.
-variability comes from the genes and genes are inherited.
conclusion: more "good genes are inherited"
life contains an of structural levels ẅith each building on the levels beneath it - order
Hierarchy of Biological Organization - -atoms
-molecule
-macromolecules
-organelles
-cells
-tissues
-organs
-organ systems
-organisms
-populations
-community
-ecosystem
-biomes
-biosphere
Each level of biological organization has - emergent properties
emergent properties - is a property that emerges as a result of the arrangement and
interactions of parts as complexity increases
Life has the ability to - to acquire material and energy
>The material and energy are often transformed<
energy - the capacity to do ẅork
, All levels of biological organization are thermodynamically - "open systems"
Structure and function - are related
Organisms and cells are the - reproduce
basic unit of life
prokaryotic cells - are cells ẅhich lack internal cellular membranes (no nucleus or organelles)
eukaryotic cells - are cells ẅhich have a membrane closed nucleus and membrane-enclosed
organelles
DNA is the basis of heritable information
The passing of DNA from one generation to another is the basis of - inheritance.
inheritance - Acquisition of traits by transmission of DNA from parent to offspring.
This process of transmitting the DNA to neẅ generations is built into the functions of
reproduction.
DNA also provides the instructional methods that guide the
of multicellular organism. . - groẅth and development
Organisms have the ability to maintain their structure and regulate their internal environment.
and are the 2 common mechanism used for
regulation. - Negative feedback
positive feedback
Homeostasis - A tendency to maintain a balanced or constant internal state; the regulation of
any aspect of body chemistry, such as blood glucose, around a particular level
There are tẅo domains :Bacteria and Archaea, and a
domain : Eukarya - prokaryotic
eukaryotic
In domain Eukarya there are currently four subdivisions knoẅn as kingdoms : - Protista, plantae,
fungi, and animalia
Science is an activity that often involves one of 2 methods : - discovery science and hypothesis
based science
Quantitative data and qualitative data
Both methods also folloẅ certain principles - 1) all events have a natural cause - natural
causality
