4th QT Flashcards
Change of traits which were inherited from an ancestor
Takes thousands of years
results to biodiversity
Evolution
Whjat is lamarck’s example for evolutionary evidence?
Short necked giraffe
the genetic variation in species.
biodiversity
French naturalist in
the 1800’s
Made a theory about
the organic evolution of
animals
Jean baptist Lamarck
Assumptions of Lamarck
on Organic Evolution
Adaptation (environment)
Organisms were driven from
simple to complex forms
British Naturalist in 1901
Wrote and published On
The Origin of Species (Theory of common ancestry)
Charles Darwin
Evolutionary evidences
Fossil records
Biochemical evidences
Comparative anatomy
Observable evidences
Nitrogenous base sequence in DNA are all the same.
Biochemical evidence
Due to the changing environment, organisms change structures to be fit in the environment
Same structures,
different functions
Comparative anatomy
Organisms with the best traits reproduce and produce
offspring
Organisms with undesirable traits become extinct
Theory of natural selection
artificial selection (genetic modification)
Evolutionary process in which a new species arise from an
existing species
Speciation
Causes of speciation
Geographical Isolation
Reduction of Gene Flow
Scientists who developed gas laws
Robert Boyle
Jacques Charles
Joseph Louis Gay-Lussac
used to describe the behavior of gases.
Kinetic Molecular Theory
kinetic molecular theory assumptions
Gases consists of tiny particles.
Volume of the individual particles
can be assumed to be zero.
Particles are in constant, random
motion.
Particles do not attract nor repel
each other.
The average kinetic energy particles
is directly proportional to the
temperature of the gas.
Quantifiable properties of gases:
Volume
Pressure
Temperature
Number of Particles
Amount of space occupied by matter
Measured in L or cm3
depends on
temperature and pressure.
volume
force per unit area
pressure
the higher the place, the lower the pressure
average kinetic
energy of an object
Temperature
The higher the amount of
moles, the higher the amount of
substance.
how many particles can I fit in that space
No. of particles
Irish-born philosopher who did
investigations in physics, chemistry,
etc.
Studied the behavior of gases
Famous for his J-tube experiment
Robert boyle
Temp x KE relationship
Directly proportional
more heat, more KE, more movement
Pressure x Volume Relationship
inversely proportional
pressure increase, volume decrease
French scientist
Provided an explanation of how hot
air balloons work
A larger volume is occupied when
gas is heated because hot air is less
dense than cold air.
JACQUES ALEXANDRE CHARLES
