Professor: Roe
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S.I. Leader: Stephanie Schneider
Biology 211 (1) Exam 2 Worksheet!
Chapter 33!
Introduction to Animal Diversity Kingdom Animalia:!
1. Approximately how many different animal species are alive on Earth currently. How
many those species have been described and given scientific names?
a.
2. List at least three characteristics of animals. What are animals cells held together by?
a.
b.
c.
3. _______ has two sets of chromosomes, while _______ has one set.
4. From the beginning of the zygote formation, list and explain the actions that occur to
eventually form the gastrula.
a.
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5. What are the 3 embryonic tissue layers (germ layers) called? What adult tissues are
formed from each of these 3 layers?
a.
b.
c.
6. All eukaryotes have _________ genes that regulate the expression of other genes.
7. Fill out the chart on the history of animal life on Earth.
Era
How many years ago? Major Activity
Neoproterozoic
Paleozoic
Mesozoic
Cenozoic
8. What are three of the main hypotheses of the Cambrian Explosion?
a.
b.
c.
9. Describe the three different types of symmetry.
a. Asymmetry:
b. Radial:
c. Bilateral:
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Professor: Roe
S.I. Leader: Stephanie Schneider
10. Do sponges have true tissues?
11. ___________ organisms only have the ectoderm and endoderm germ layers.
___________ organisms have all three germ layers.
12. At what developmental stage should one be able to first distinguish a diploblastic from
triploblastic embryo?
a.
13. What is a coelom? Draw a cross section of an acoelomate, pseudocoelomate, and
coelomate animal.
a.
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14. Compare and contrast protostome and deuterostome development from zygote to
gastrulation. Does the blastopore become the mouth or the anus in a protostome
animal?
a. Protostomes:
b. Deuterostomes:
15. In protostome animals, the blastopore becomes the _______ of the digestive system,
and the cleavage is _______ and _________.
16. In deuterostome animals, the blastopore becomes the _______ of the digest system,
and the cleavage is ______ and ________.
17. Describe the difference between cleavage that is determinate and cleavage that is
indeterminate.
a. Determinate:
b. Indeterminate:
18. What are the two major protostome clades?
a.
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Professor: Roe
S.I. Leader: Stephanie Schneider
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Chapter 34: Sponges and Cnidarians!
Phylum Calcarea and Silicea:!
1. Fill out the following chart:
Sponges
Phylum
Symmetry
Reproduction
Feeding System
Feeding Cell
Tissue (Yes or No)
Motility (Adult VS Larvae)
Triploplasty or Diploblasty
Ecosystem
2. Sponges are ___symmetrical. Their inner cell layer is made up of _______ and the
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outlet layer is known as the ______.
3. What evidence is there that multicellularity originated in a sponge-like animal? What
protist is the closest relative to animals?
a.
4. Draw and label a simple sponge body plan.
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Professor: Roe
S.I. Leader: Stephanie Schneider
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Phylum Cnidaria: !
1. Fill out the following chart:
Coral/Jellyfish/Hydra
Phylum
Symmetry
Reproduction
Feeding System
Tissue (Yes or No)
Body Forms (Motility)
Triploblasty or Diploblasty
Ecosystem
2. What are the four classes of Cnidarians?
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What are the two body forms of Cnidarians?
a. !
What specialized cell do cnidarians use to capture their prey?
a. !
If you went to study coral in the ocean, what body form would you see them as?
a. !
What symbiotic relationship do many corals have?
a. !
Both the polyp and medusa are what ploidy level?
a. !
a.
3.
4.
5.
6.
7.
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Professor: Roe
S.I. Leader: Stephanie Schneider
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Chapter 34: Lophotrochozoans!
Lophotrochozoans:
Platyhelminthes
(Flatworms)
Ceolom type
Symmetry
Reproduction
Feeding System
Tissue (Yes or No)
Protostomes or Deuterostomes
Lophophore/Trochophore
Triploblasty or Diploblasty
Segmented (Yes/No)
Ecosystem
One Free-living Class
Three Parasitic Class
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1. What is the lophophore function? Trochophore function?
2. Define cephalization:
3. What is a major difference between the body plan of a free-living and a parasitic
Platyhelminthes?
4. Name at least four characteristics of parasitic Platyhelminthes.
1.
2.
3.
4.
5. Schistosomiasis is a debilitating disease in humans caused by _______________.
6. Do tapeworms have a digestive tract?
!
Annelida
Ceolom type
Symmetry
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Professor: Roe
S.I. Leader: Stephanie Schneider
Annelida
Reproduction
Feeding System
Tissue (Yes or No)
Protostomes or Deuterostomes
Lophophore/Trochophore
Triploblasty or Diploblasty
Segmented (Yes/No)
Ecosystem
Three Groups
!
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7. What are some reasons that earthworms are ecologically important?
Mollusca
Ceolom type
Symmetry
Reproduction
Feeding System
Tissue (Yes or No)
Protostomes or Deuterostomes
Lophophore/Trochophore
Triploblasty or Diploblasty
Segmented (Yes/No)
Ecosystem
Three Classes with Radula
(Examples)
One Class w/o Radula (Examples)
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1. Draw a general body plan of a Mollusk. Be sure to include the following: foot, mantle, shell,
visceral mass, gill.
2. What is a radula? What has the radula in Cephalopoda been modified into?
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Professor: Roe
S.I. Leader: Stephanie Schneider
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Chapter 34: Ecdysozoans!
Ecydosozoans:!
Nematoda
Roundworms
Ceolom type
Symmetry
Feeding System
Protostomes or Deuterostomes
Triploblasty or Diploblasty
Segmented (Yes/No)
Examples of Nematoda that
parasitize humans
Ecosystem
!
3. Nematoda are covered by an exoskeleton referred to as a _______ that is made of ________.
Arthropoda
Ceolom type
Symmetry
Feeding System
Protostomes or Deuterostomes
Triploblasty or Diploblasty
Segmented (Yes/No)
Four major subphyla (give examples)
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1. Arthropod success and diversity is related to these four characteristics:
1.
2.
3.
4.
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2. What is the most successful group of arthropods?
3. Insects have hard exoskeletons made of _______. What are three advantages to an
exoskeleton?
1. Provides protection, prevents water-loss, attachment sites for muscles.
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Professor: Roe
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S.I. Leader: Stephanie Schneider
4. Insect have what three major adaptations that may be the key to their success?
1.
2.
3.
5. Insects consume ____% of crops in parts of Africa. U.S. farmers spend __illions each
year on pesticides.
6. What is the main benefit of having jointed appendages?
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Professor: Roe
S.I. Leader: Stephanie Schneider
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Chapter 35: Vertebrates!
Deuterostomes:!
1. All chordates have what four characteristics?
a.
!
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2. What are four characteristics that vertebrates have?
a.
!
3. Match
a.
b.
c.
d.
e.
f.
g.
h.
i.
the terms to the correct number:
Head
Notochord
Lobed fins
Milk
Vertebral column
Lungs/lung derivatives
Amniotic egg
Jaws, mineralized skeleton
Legs
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Professor: Roe
S.I. Leader: Stephanie Schneider
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