Animal Diversity

ANIMAL DIVERSITY

Systematics
• study of biological diversity and its origins

Its arms
TAXONOMY  focus on properly describing, identifying, classifying, and naming of organisms.

CLASSIFICATION
 focus on placing organisms within groups that show their relationships to other organisms.

Writing
a
scientific
name.

• Kimberlicus
beltranus
 • Kimberlicus

beltranus


The Protozoans

Protozoa


Alveolates

Ciliates
 Sporozoans
 Dinozoans


Amoeboids

Amoebozoa
 Cercozoa


Discicristates
 Parabasala
 Euglenozoa


Alveolata


Ciliophora


Sporozoa


Dinozoa


Didinium
sp.
 ►body is barrel-shaped with cilia restricted to 2 girdles ► the anterior has a proboscis elevation at the tip is an expansible cytostome ►macronucleus is Cshape ► carnivorous


Paramecium
sp.

• Body
is
slipper‐shape
with
a
 blunt
anterior
and
pointed
 posterior
region
 • Body
is
covered
by
a
firm
 pellicle
and
a
cilia
used
for
 locomotion,
protection
and
 sweeping
of
food
materials
 • Food
materials
comes
in
thru
 the
oral
groove
leading
to
the
 cytopharynx
 • Fecal
materials
are
expelled
 thru
a
cytoproct
found
 posteriorly


Vorticella
sp.

• Bell‐shaped
 • 2
rows
of
cilia
are
confined
 to
the
oral
region
 • Macronucleus
is
worm‐like
 while
micronucleus
is
dot‐ like
 • Attached
to
the
body
is
a
 long
stalk
with
contractile
 fibers
or
myonemes


Stentor
sp.

• Trumpet‐shape
ciliate
 • Macronucleus
is
 monoliform
or
bead
 like
 • May
either
be
 attached
to
substrate
 or
free‐
swimming


Phylum
Dinozoa

• Dinoflagellates:
single‐celled
organisms

 • Occur
as
motile
cells
with
2
flagella
 • Possess
equatorial
and
posterior
longitudinal
 flagellum
located
in
grooves
 • Body
is
either
naked
or
covered
by
cellulosic
 plates
or
valves
or
by
cellulose
membrane


Ceratium
sp.

• Lives
in
freshwater
 and
marine
habitats
 • Girdle
divides
it
into
 anterior
epicone
and
 posterior
hypocone
 • Contains
a
centrally
 located