18. Human beings have trouble believing that
individuals, cities and fashions change over
timeâŠ.. for most of human history, people didnât
think that .
, some still believe this!
24. Because of the time intervals needed for
evolutionary change, (thousands of years,
millions of years, billions of years) for most of
human history, people had no idea that species
couldevolve.
25. For most of human history, people thought
that living things were ALWAYS the same
way they appear NOW!
They were wrong!
30. .
.
.
which species are
more which
are closely .
âą They show the species
the species.
31. How to read an evolutionary tree
diagram:
âą Species A is the
of all the other species.(
)
âą Species D, E and F are all
( ).
âą Species B and C are (still
alive in the present)(
)
âą Species E and F are more closely
related to each other than to
species D. (
)
63. Charles Darwin devised
(the theory of evolution):
The theory of natural selection
says four things:
1. many many
variations in populations.
2. always
.
3. for the
4.
tend to
competitions
67. 2. always .
They have the
âs limited resources
68. 3. Because resources are limited,
Mine!
.
NO
MINE!
MINE!
OURS!
No
mine!
NO
OURS!
NO
MINE! MINE!
69. 4.
competitions
I took this away Youâre a good
from another bird âbreadwinnerâ.
just for you! Yes Iâll marry
Will you marry me? you!
I hope our
offspring
come out just
like you!
THE
WINNER!
73. Species try to find foodâŠ
Hey Paul,
Finally
do you
some
hear
âgrubâ
something?
Yeah! Iâm so
hungry, I can
eat a horse!
Youâre
ALWAYS
hearing
âsomethingâ.
Eat some of
this delicious
grass and
stop
worrying so
much!
74. Iâm out
of
here!
And species try
food! Who âwastedâ
their money on
a bike now?
Paul! Wait
for me!
75. Living things are in a fight;
for , , hierarchical position
and they donât !
The habitat, the
niche, the
cheese 1..2..3..
Minnie
Mouse are
!!!
Why do
I see
stars?
76.
77. Every individual born through sexual
reproduction is a unique and born with
a unique mixture traits.
85. Example: in âI am Legendâ, these
characters were âfitâ because they were
immune to the Crippen Virus! They
survived while all the âunfitâ died out.
89. âą Geographic isolation is different
(separated) by oceans or
mountains etc.
âą They are in different environments, having different
foods, facing different dangers.
they
.
141. Some people donât believe in evolution
(especially human evolution) because they
donât see organisms changing before their
eyes! IF
evolution
is true,
why donât
I see
monkeys
turn into
people,
huh?
142. One could NOT see human evolution because we
are very long-lived & take a long time to
reproduce! Evolution in us is slow & takes many,
many, many, many, many, generations for the
changes to be apparent.
144. Insects have a short reproductive cycle
(many generations in a short time) bacteria
reproduce every twenty minutes. One
bacteria can become millions in a few days.
145. We can insects and especially
bacteria evolve almost in front of
our eyesâŠand this is a threat to
humans
146. !
Our turn to spray
YOU humans!
This is
MRSA, the
Flesh-eating
Bacteria. It
evolved
from
âStaphâ and
is drug-
resistant!
147. âą Species go extinct all the time.
âą Scientists estimate that 99% of all life that has
lived on Earth is now extinct!
148. Why do some species go extinct
and other donât?
Variations!
150. Ex. Koala bears live on one continent and
only eat one kind of plant. If there habitat
were destroyed, they would face
extinction.
151. Humans eat anything, live anyway, do
any job. They have so many many
varieties of survival strategies.
152. And now your independent work: complete
all the even questions in the packet.
Miss K, Mr. G or Mr. E will do the odd ones!
NOOOOOOOOOOOOO
NOOOOOOOOOO!!!!!!!
OOO!!!!!!!!!!!!!! NOOOOOOOOOOOO!!!!!
!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!