Embed Size (px)
Citation preview
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
28 Exploring Redi’s Experiment©
Pren
tice-
Hal
l, In
c.
One jar wasleft uncovered.The second jarwas covered.
Maggotsappeared on themeat in the open jar.
Redi concludedthat meat didnot producemaggots.
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
29 Exploring Pasteur’s Experiment©
Pren
tice-
Hal
l, In
c.
Pasteur boiledthe broth in oneflask only.
Bacteria grew inthe unboiled brothbut not in theboiled broth.
When the boiledbroth was exposedto air, bacteriagrew. Pasteurconcluded thatbacteria do notspontaneouslyarise from broth.
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
30 Seven Levels of Classification©
Pren
tice-
Hal
l, In
c.
Kingdom Animalia
Phylum Chordata
Class Aves
Order Strigiformes
Family Strygidae
Genus Bubo
Species Bubo virginianus
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
entic
e-H
all,
Inc.
31
Ho
w a
Vir
us
Att
ach
es
to a
Ho
st C
ell
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
32
Exp
lori
ng
Ho
w A
ctiv
e V
iru
ses
Mu
ltip
ly
The
viru
sin
ject
s its
gen
etic
mat
eria
l.
The
bac
terium
star
ts t
o p
rod
uce
the
viru
s’s
pro
tein
s an
dg
enet
ic m
ater
ial.
The
bac
terium
burs
ts o
pen
,re
leas
ing
new
viru
ses.
New
viru
ses
asse
mb
le.
A v
irus
atta
ches
to a
bac
terium
.
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
33
Exp
lori
ng
Ho
w H
idd
en
Vir
use
s M
ult
iply
A v
irus
atta
ches
to a
bac
terium
.
The
viru
s in
ject
sits
gen
etic
mat
eria
l.
The
viru
s’s
gen
etic
mat
eria
lb
ecom
es a
par
t of th
e g
enet
icm
ater
ial o
f th
e b
acte
rium
.
The
viru
s’s
gen
etic
mat
eria
lb
ecom
es a
ctiv
e.
New
viruse
sas
sem
ble
.
The
bac
terium
burs
ts o
pen
and
rele
ases
the
new
viru
ses.
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
34
Th
e S
tru
ctu
re o
f a B
act
eri
al
Cell
Flag
ell
um
Cyto
pla
sm
Gen
eti
cm
ate
rial
Rib
oso
me
Cell
mem
bra
ne
Cell
wall
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
35
Exp
lori
ng
Pro
tozo
an
s—A
meb
a
Pse
ud
op
od
Food
vacu
ole
Cell
mem
bra
ne
Con
tract
ile
vacu
ole
Nu
cleu
s
Cyto
pla
sm
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
36
Exp
lori
ng
Pro
tozo
an
s—P
ara
meci
um
Food
vacu
ole
Ora
lg
roove
Pellic
le
Con
tract
ile
vacu
ole
s
An
al p
ore
Cyto
pla
smSm
all n
ucl
eu
s
Larg
en
ucl
eu
s
Cilia
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
37
Th
e S
tru
ctu
re o
f a E
ug
len
a
Flag
ell
um
Eyesp
ot
Co
ntr
act
ile
vacu
ole
Nu
cleu
sP
ell
icle
Ch
loro
pla
st
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
38 The Structure of a Mushroom©
Pren
tice
-Hal
l, In
c.
Cap
Gills
Stalk
Hyphae
Undergroundhyphae
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
39
A P
lan
t C
ell
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
40
Th
e L
ife C
ycl
e o
f P
lan
ts
Sp
oro
ph
yte
Pro
du
ces
spo
res
Pro
du
ces
eg
g c
ell
s
Pro
duce
ssp
erm
cells
Gam
eto
ph
yte
Gam
eto
ph
yte
Eg
g c
ell
s
Sp
erm
cell
Fert
iliz
ati
on
pro
du
ces
a z
yg
ote
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
42
Th
e S
tru
ctu
re o
f Seed
s
Co
rn
Seed
coat
Co
tyle
do
n
Sto
red
foo
d
Em
bry
o
Em
bry
o
Em
bry
o
Co
tyle
do
n(s
tore
s fo
od
)
Co
tyle
do
n
Seed
coat
Seed
coat
Bean
Pin
e
Sto
red
foo
d
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
43 Exploring a Leaf©
Pren
tice
-Hal
l, In
c.
CuticleUpperleaf cells
Xylem
Phloem
Lowerleaf cells
Stomata
Chloroplasts
Vein
Surfacecells
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
44
Th
e P
art
s o
f a W
oo
dy S
tem
Pit
h
Bark
Cam
biu
m
Xyle
m
Heart
wood
Sap
wood
Inn
er
bark
or
ph
loem
Ou
ter
bark
©Pr
enti
ce-H
all,
Inc.
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
45 Exploring the Life Cycle of a Gymnosperm©
Pren
tice
-Hal
l, In
c.
A pine treeproduces maleand female cones.
Femalecones containovules.
Male conesproduce pollen.
Pollinationoccurs.
An eggforms inan ovule.
Fertilizationoccurs.
A seed develops.
A seed growsinto a seedling.
Scale on female cone
Scale on male cone
Ovule
Embryo
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
46
Th
e S
tru
ctu
re o
f a F
low
er
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
47 Exploring the Life Cycle of an Angiosperm©
Pren
tice
-Hal
l, In
c.
The angiospermproduces flowers.
Theantherproducespollen.
Pollinationoccurs.
Fertilizationoccurs.
A seeddevelops.
An eggcell isproducedin eachovule.
A fruitenclosesthe seeds.
A seedgrows into a new plant.
OvuleAnther
Ovary
PollentubeEmbryo
Spermcells
©Pr
enti
ce-H
all,
Inc.
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
48 Animal Classification Tree
©Pr
enti
ce-H
all,
Inc.
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
49 Exploring a Sponge
Pore
Collar Cell
Osculum
Spikes
Jellylike Cells
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
50
Exp
lori
ng
th
e L
ife C
ycl
e o
f a D
og
Tap
ew
orm
Tap
ew
orm
en
ters
dog
’sd
igest
ive t
ract
.
Tap
ew
orm
att
ach
es
toin
test
ine.
Rab
bit
eats
tap
ew
orm
eg
gs.
Dog
eats
in
fect
ed
rab
bit
.
Hooks
Su
cker
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
51
Eart
hw
orm
An
ato
my
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
52
Exp
lori
ng
a S
nail
Ten
tacl
e
Eye
Foot
Rad
ula
Sh
ell
Sto
mach
Man
tle
Mou
th
Heart
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
53 Exploring a Crayfish©
Pren
tice
-Hal
l, In
c.
Cheliped
Walking Leg
Swimmeret
Compound Eye
Small Antenna
LargeAntenna
Tail
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
54
Gra
ssh
op
per
An
ato
my
Ab
dom
en
Head
Win
g
Sim
ple
eye
Com
pou
nd
eye
An
ten
na
Th
ora
x
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
55 Exploring Insect Metamorphosis©
Pren
tice
-Hal
l, In
c.
Larva
Egg
Adult malegrasshopper
Pupa
Adult
EggNymph
LargerNymph
C O M P L E T EM E T A M O R P H O S I S
G R A D U A LM E T A M O R P H O S I S
Adult
Adultmalefirefly
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
56
Exp
lori
ng
a S
ea S
tar
Sto
mach
Sp
ines
Tu
be F
eet
Op
en
ing
for
Wate
r
Wate
r V
asc
ula
r Syst
em
Eyesp
ot
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
57
Vert
eb
rate
Evo
luti
on
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
58
Exp
lori
ng
a B
on
y F
ish
Late
ral Lin
e
Sto
mach
Tail F
in
Fin
s fo
r B
ala
nce
Gills
Sca
les
An
us
Gill C
over
Heart
Sw
im B
lad
der
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
59
Fro
g M
eta
mo
rph
osi
s
Leg
less
tad
pole
Hin
d leg
s d
evelo
p
Fert
iliz
ed
eg
gs
Fron
t le
gs
develo
p
Ad
ult
fro
g
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
60
Exp
lori
ng
a F
rog
Skin
Eyes
EarsM
ou
th
Lu
ng
s
Hin
d L
eg
s
Sto
mach
Heart
Kid
ney
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
61
A R
ep
tile
Eg
g
Air
sp
aceSh
ell
Alb
um
en
(eg
g w
hit
e)
Mem
bra
ne
Em
bry
o
Yolk
Mem
bra
nes
62 Exploring a Lizard©
Pren
tice
-Hal
l, In
c.SC
IEN
CE
EXPL
OR
ERFo
cus
on L
ife S
cien
ce
Skin
Nostrils
Eyes
Kidney
Heart
Crest
Dewlap
Claws
Tail
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
63
Cir
cula
tio
n i
n F
ish
es,
Am
ph
ibia
ns,
an
d B
ird
s
Fish
Bir
dA
mp
hib
ian
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
©Pr
enti
ce-H
all,
Inc.
64
Exp
lori
ng
a B
ird
Air
Sacs
Heart
Giz
zard
Con
tou
rFe
ath
ers
Bill
Cro
p
©Pr
enti
ce-H
all,
Inc.
SCIE
NC
E EX
PLO
RER
Focu
s on
Life
Sci
ence
65
Bir
d F
lig
ht
