1. Variables
Important Factors in Choosing Papaya
(to be narrowed down to 10)
Demographics
place where growing
origin of plant- commercial, nursery,
friend, volunteer, etc)
height of plant
garden or wild
intention of plant (to eat, ornamental, use
of plant – eating, giving away, selling?,
Condition of the plant (diseased
(describe)
used fertilizer,
use pesticide,
Growing alone or in cluster
does the plant have fruit?
For HW Credit - List other variables
can think of
20 – 4 pts
15 - 3 pts
10 – 2 pts
5 – 1 pt
2. Biology 4th Quarter
DIVERSITY, CLASSIFICATION, GENETICS, AND
EVOLUTION
Understand genetics and biological evolution
and their impact on organisms –
Why don’t some antibiotics work anymore?
The Big Idea(s) / Major Understanding(s):
• Evolution and natural selection lead to organisms changing over time.
• Modern classification system groups organisms according to their degree
of relatedness.
Week 31 History of Life
Week 32 Theory of Evolution
Week 33 Mechanisms of Evolution
Week 34 Primate Evolution
Week 36 Classification of Living Things
Week 37 The Six Kingdoms
Weeks 38 and 39 Final Projects
3. Week 31
only 8 to go The History of Life
Water Humans Geologic Time Scale
cools on appear!!
surface
of Earth
4.5 bya
First
living
things
appear
Ch 14 Pg 368 3.5 bya
See video – Carl Sagan Cosmos
4. when life originated
3.9 to 3.5 billion years ago (bya)
First living things
appear
3.5 bya
5. fossil
Evidence of an organism that lived long ago
that is preserved in earth’s rock
9. radiometric
isotope
dating
Determining the Atoms of the same
age of fossils by element that have
measuring the different numbers
amount of of neutrons
radioactive
isotopes
10. geologic time scale
A chronology of
the earth’s history
based on rocks
and fossils
11. Precambrian era
87% of
earth’s
history, from
prokaryotes Precambrian Era
to beginning
invertebrates
(hard shelled
animals, up to
543 million
years ago
(mya)
12. Paleozoic era
old life
13%
Era where the of the
time
amount of life
oxygen has
been
increased in the on
atmosphere earth
before abundant
complex life, up
to 248 million
years ago (mya)
Without oxygen, you would be pale! 87%
13. Mesozoic era
Often called the “age
of reptiles” with much
tectonic, climatic and
evolutionary activity,
ended with mass
extinction 65 mya
Don’t mess with dinosaurs!
14. plate tectonics 2
6
Theory of how
1 5
continents move – 8
4
spreading apart, 3 9
sliding by or
7
pushing against
each other
Like plates on a table pushing
and sliding against each other
Video Unfold the earth
Seismic Earthquakes -
earthquakes
Plate tectonics - animation
16. spontaneous
generation biogenesis
The idea that nonliving The idea that living
material can produce organisms come only
life, disproved by from other living
Francisco Redi and
Louis Pasteur organisms
17. protocell
A large ordered structure, enclosed by a membrane that
carries out some life activities such as growth and division,
show how the first cells may have occurred
link
18. archaebacteria
beginning, origin
Prokaryotes that are thought to be the first
living organism, followed by
photosynthesizing prokaryotes
19. endosymbiont theory
Internal relationship
Explains how eukaryotes probably evolved from
prokaryotic cells
What does this illustration suggest about the evolution of cells?
20. Homework
– Analyze and critique the four ideas about the
origin of life on pg 388
Or
– Make a poster of the Geologic Time Scale
showing the history of life on Earth – show
eras, periods, epochs and mya
4 pts. – color with drawings and descriptions, very neat
3 pts – color with drawings and descriptions, neat
2 pts - descriptions, neat
22. A large ordered structure, enclosed by a membrane that
carries out some life activities such as growth and division,
show how the first cells may have occurred
link
23. Prokaryotes that are thought to be the first
living organism, followed by
photosynthesizing prokaryotes
24. – Explains how eukaryotes probably evolved from
prokaryotic cells
25. A chronology of
the earth’s history
based on rocks
and fossils
26. Determining the age
of fossils by
comparing fossil in
the layers of rock
around it
27. Determining the
age of fossils by
measuring the
amount of
radioactive
isotopes
28. Theory of how
continents move –
spreading apart,
sliding by or
pushing against
each other
Video Unfold the earth
Seismic Earthquakes -
earthquakes
Plate tectonics - animation
30. The idea that nonliving The idea that living
material can produce organisms come only
life, disproved by from other living
Francisco Redi and
Louis Pasteur organisms