Transcript main protozoa

Protists
Defined by exclusion – most protist are
eukaryotic organisms that cannot be
classified as fungi, plants, or animals
Usually unicellular
Can be “plant-like” or “animal-like”
Amoeba
Clear
“Shape shifter” –
cytoplasm flows into
pseudopodia
Contains food
vacuoles
Moves by
pseudopodia
(structures that
temporarily extend
and contract to pull
the amoeba along)
Paramecium
Has 2 nuclei
Oral grove for feeding
Moves by cilia (short
hair-like structures
that surround the cell)
Euglena
Contains chloroplasts
(gives it green color)
Combination between
a plant and animal
Moves by flagella
(long hair-like
structure that extends
from the front of the
euglena)
Stentor
One of biggest unicellular organisms
Cilia around “bell” that sweep in food and
aid in movement
“Horn” Shaped (Resemble a trumpet)
Can regenerate and small fragments can
grow into full organisms
Volvox
Form spherical
colonies of up to
50,000 members
Can perform
photosynthesis
The following are classified under the
Kingdom Animalia
These organisms are very small and very
unique
Rotifer
“sessile” – attaches to
one place and stays
there.
Can move by crown
of cilia
Cup shaped mouth
Hydra
Can regenerate lost
body parts
Has tentacles
Moves by “walking”
with its tentacles, or
sliding along like a
worm
Planaria
Bilateral symmetry
(same on each side)
Amazing ability to
regenerate
Has eyespots
Can master a maze
through responses to
stimuli
Moves like a worm
Daphnia
Have a head with compound eyes that can
be seen
Antennae