Second Long Test in Biology 1
Fourth Quarter, SY 2012-13, Kingdom Animalia
A. Fill in the blanks. Complete the diagram below by filling in the blank boxes with the appropriate term/s. (14 points)
B. Animal biodiversity. Read the short passages below and answer the questions that follow.
(36 points)
It’s summertime and you decide to reward yourself by travelling all over the Philippines
and experiencing our country’s unique biodiversity first-hand. Your first stop is Palawan
and your first activity is to food-trip! The locals invite you to try the soft and wormy
delicacy, tamilok (Teredo sp.). Also called a shipworm, this soft-bodied marine organism
is a filter-feeder that bores holes in the wooden hulls of ships and planks of piers and
docks. The soft body secretes very small two-part CaCO3 shells joined by a hinge on one
end of the organism
1. To which phylum does this organism belong?
2. What is the term for the structure that secretes the shell?
3. What organ does this organism use to respire?
4. What type of circulatory system does this organism have?
5. To which class does this organism belong?
While exploring a reef in Honda Bay, you discover the sessile organism Macrodactyla
doreensis. It feeds on small shrimps and fish by stinging them with harpoon-like
structures discharged from its tentacles and using the tentacles to stuff their prey into
their mouths.
6. To which phylum does this organism belong?
7. What are the harpoon-like structures of this organism called?
8. What is the prominent stage in the life cycle of this organism?
9. How many germ layers does this organism have?
10. What is the digestive and circulatory structure of this organism called?
11. What type of asexual reproduction does this organism undergo?
12. To which class does this organism belong?
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Mildly alarmed, you move away from the bristly and segmented organism paddling
towards you and watch as it passes out waste from its anus and begins to attack a small
crustacean.
13. To which phylum does this organism belong?
14. What are the bristles of this organism called?
15. What are the paddle-like structures of this organism called?
16. What type of circulatory system does this organism have?
17. To which class does this organism belong?
Next, you discover the cup-shaped organism Theonella swinhoei. It is asymmetric, thinwalled and has numerous holes. Upon submitting a sample later on for laboratory
analysis, you find that it has tiny spike-like silica structures reinforcing its walls.
18. To which phylum does this organism belong?
19. How does this organism obtain food?`
20. How does this organism respire?
21. What are the spike-like silica structures of the organism called?
22. To which class does this organism belong?
Tired from all the swimming, you sit on the beach and plug in your earphones. While
singing your favourite song from SHINee, you notice yet another segmented organism
crawling in the sand beside you. The Scolopendra morsitans quickly approaches your leg.
In order to avoid being bitten by this venomous predator, you squash it with your big
Biology book (aren’t you glad you brought it along?).
23. To which phylum does this organism belong?
24. What makes up the tough exoskeleton that covers this organism?
25. Small holes in the ventral portion of the organism lead to thin tubes. What are these
holes called?
26. What do you call the excretory structures of these organisms?
27. What is the common name of this organism?
You stroll along the intertidal zone and come across Ophiomastix janualis. You are
fascinated by its sinuous movements and its pentaradial symmetry.
28. To which phylum does this organism belong?
29. Why is this phylum the most closely-related to our own?
30. What is the characteristic organ system that is responsible for movement,
circulation and excretion in this organism?
After enjoying your vacation, you start feeling ill and losing weight. The medical staff
examines your stool and performs blood tests. The doctor shows you the labelled slide
on the right and tells you that you are infected by Fasciola hepatica larvae that were
released by snails into the soil. These may have contaminated the raw leafy vegetables
you were munching on for most of the month. These soft-bodied unsegmented parasites
are only a few cells thick and possess no body cavities.
31. To which phylum does this organism belong?
32. This phylum has both parasitic and nonparasitic members; name a structure present
in parasitic members that is not found in the free-living organisms.
33. What are the excretory cells of this organism called?
34. What are the bundles of nerves located in the anterior portion of the organism
called?
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Because misery loves company, you ask your doctor about parasitic diseases that are
worse than yours and he shows you the slide on the right and tells you about the softbodied unsegmented parasite Wuchereria bancrofti. It is transmitted by mosquito bites
and causes massive swelling of the extremities when it blocks the lymph vessels. He
explains that these organisms are more complex than F. hepatica and have body cavities
and complete digestive systems.
35. To which phylum does this organism belong?
36. Explain how the body cavity of this organism is different from your body cavity.
C. Short Answers Only. Choose a maximum of TWO items to answer succinctly. You may use diagrams, tables, bullet points,
etc. to help you better explain the concepts involved. (5 points)
1.
2.
3.
Sketch the process by which a one-celled zygote develops into a gastrula with more than one layer. Label the following
structures: zygote, blastula, blastopore, and gastrula. (3 pts.)
Enumerate the four characteristics that all chordates share. (4 pts.)
Choose one animal phylum, discuss the origin of its name, describe how it feeds, how it respires, how it transports fluid
and nutrients throughout its body, how it excretes metabolic wastes, how its nerves and muscles (if present) are arranged,
how it moves, how it reproduces, and its ecological role. (6 pts.)
abdomen
aboral
acoelomate
amoebocyte
animal-like protist
antennae
anterior
Anthozoa
anus
Aplacophora
appendage
Asteroidea
Bilateria
Bivalvia
blastopore
blastula
blood vessel
book lungs
budding
Calcarea
calcium carbonate
Cambrian explosion
cephalization
Cephalopoda
Cestoda
Chelicerata
chitin
choanocyte
clitellum
closed circulatory
system
cnidocyte
coccoon
Coelenterata
coelom
coelomate
complete digestive system
complete metamorphosis
Crinoidea
cross-fertlization
Crustacea
Ctenophora
Cubozoa
Demospongiae
deuterostome
diffusion
diploblast
dorsal
Echnoidea
endoskeleton
ephyra
Eumetazoa
eyespot
fangs
fission
flame cell
foot
ganglia
gastrodermis
Gastropoda
gastrovascular cavity
gastrula
gemmules
gills
head
heart
hermaphrodite
Hexactinellida
Hirudinea
Holothuroidea
hydrostatic skeleton
Hydrozoa
incomplete digestive system
incomplete metamorphosis
internal fertilization
invagination
jet propulsion
lung
Malpighian tubules
mantle
medusa
mesoglea
mesohyl
metamere
Monoplacophora
mouth
multicellularity
muscle
nematocyst
nephridia
nerve cord
nerve net
notochord
Oligochaeta
open circulatory
system
Ophiuroidea
oral
osculum
ostia
parapodia
parthenogenesis
pentaradial symmetry
pharyngeal slit
pharynx
pincers
Polychaeta
polyp
Polyplacophora
porocyte
post-anal tail
posterior
proboscis
proglottids
protostome
pseudocoelomate
radula
Radiata
regeneration
Scaphopoda
Sclerospongiae
scolex
Scyphozoa
segmentation
septa
setae/chaetae
silica
siphon
spicule
spiracles
spongin
spongocoel
thorax
tracheal tubes
Trematoda
Trilobita
trochophore larva
tube feet
Turbellaria
Uniramia
ventral
visceral mass
water vascular system
zooxanthellae
 End of Exam 
Please review your answers
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