Animal Review

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Transcript Animal Review

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Many invertebrates have a
simple body, how does this
benefit the organism?
Can regenerate or replace
lost body parts, easier to
reproduce
Explain why many larger
invertebrates live in the
ocean
The water supports their
bodies since they have no
bones
What is the difference
between an exoskeleton
and an endoskeleton? Give
an example of an organism
with each type.
Exoskeleton-skeleton on the
outside (like a suit of armor)
ex-insects, crustaceans,
arthropods, etc.
Endoskeleton-internal skeleton
ex-echinoderms, sponges, etc
Name 3 characteristics that
all members of Phylum
Arthropoda share.
An exoskeleton, jointed
appendages and segmented
bodies
What are the names of the
3 classes of arthropods we
studied in class?
Insecta, Crustacea and
Arachnida
Give 3 reasons why a dragonfly
is a member of Class Insecta.
Answers will vary6 legs, 2 pairs of wings, 1 pair
of antennae, three body
segments (head, thorax and
abdomen)
Name 2 reasons why
earthworms are beneficial
to the soil.
Loosen the soil, make soil
more fertile, allow
air/water/roots to move
Explain the relationship
between a dog and a
tapeworm.
The dog is the host to the
tapeworm, the tapeworm is a
parasite to the dog. The worm
gets its nutrients from the dog
which harms the dog.
Phylum Platyhelminthes,
Phylum Nematoda and Phylum
Annelida are the three groups
of worms we studied in class.
What is the main characteristic
that separates these into
different phyla? Which is
which?
Shape of the worm separates the
worms into different groups (flatround-segmented)
Annelida=segmented worms,
Platyhelminthes=flat worms and
Nematoda=roundworms
A sea star can replace a lost
limb by what process?
Describe the process.
Regeneration-when a sea
star loses an arm, it can
grow a new arm through
regeneration
What 2 structures do sea
stars use to move and
capture prey?
Arm and tube feet
What are 2 characteristics
that all Echinoderms share?
Endoskeleton and radial
symmetry
Describe how a nematocyst
works.
Threads shoot out and
release poison into prey
which paralyzes it. Located
on tentacles and are
activated when prey
touches.
What are the two body
shapes for cnidarians?
Draw a sketch of each.
Polyp and Medusa
What type of reproduction did
the slides that you observed of
the hydra show? Describe this
type of reproduction, don’t just
say the name!
Budding- a type of asexual
reproduction. Budding is when a
new organism grows off the
parent’s body. Only involves one
parent and offspring is identical to
parent.
What does the word “Porifera”
mean and what does that have
to do with sponges?
It means “Pore-Bearing” and
sponges have thousands of tiny
pores (holes) all over their
bodies
Explain how sponges obtain
their food.
They filter (strain) it from the
water. They are then called
filter feeders.
What characteristic do sponges
and echinoderms share that
helps protect them?
They both have a spiny
internal skeleton
What is a radula?
Rows of teeth used to break
up food. Found in Molluks.
Name and describe the
method that Cephalopods
use to swim.
Jet propulsion-they shoot water
out in one direction which moves
them in the opposite direction.
Organ that performs this is called
a siphon.
What does “Gastropod”
mean and why are they
named that?
“Stomach Foot” because
their stomach is on the
same side as their foot
What class of vertebrates
has a 3 chambered heart,
claws on their feet, lay their
eggs on land and are
ectothermic?
Class Reptilia
What is the difference
between ectothermic
animals and endothermic
animals?
Endothermic animals can
regulate their own body
temperature. Ectothermic
animals can not regulate their
own body temperature, it
changes with their outside
environment.
Match the picture of the organism to the
group of invertebrates it belongs to.
2
1
a.
b.
c.
d.
3
Phylum Porifera
Phylum Echinodermata
Phylum Arthropoda
Phylum Cnidaria
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1. D-Phylum Cnidaria
2. A-Phylum Porifera
3. B-Phylum Echinodermata
4. C-Phylum Arthropoda
Name the phylum that the
organism belongs to.
Christmas Tree Worm
Phylum Annelida
Name the phylum and class that
the organism belongs to.
Poison Dart Frog
Phylum Chordata
Class Amphibia
Name the phylum that the
organism belongs to.
Sea Urchin
Phylum Echinodermata
Name the phylum and class that
the organism belongs to.
Cuttlefish
Phylum Mollusca
Class Cephalopoda
Name the phylum and class
that the organism belongs to.
Snail
Phylum Mollusca
Class Gastropoda
Name the phylum that the
organism belongs to.
Roundworm
Phylum Nematoda