MIDTERM REVIEW QUESTIONS
BLOCK C
Chapter 32
1. Animals with a backbone are called
a. Invertebrate
b. Vertebrate
c. Insects
d. Radial symmetry
2. Cephalization is associated with
a. Bilaterally symmetrical animals
b. Radially symmetrical animals
c. Sponges
d. Hydras
3. Animals are classified by all these except
a. Sequencing rRNA
b. Number of tissue layers
c. Type of symmetry
d. The color of the animal
4. The first animals may have evolved from
a. Bacteria
b. Porifera
c. Colonial protists
d. Mammals
5. These are all germ layers except
a. Lisoderm
b. Ectoderm
c. Endoderm
d. Mesoderm
6. All these are stages of indirect development except
a. Zygote
b. Mollusca
c. Pupa
d. Larva
7. All these have true tissues except
a. Sponges
b. Chordates
c. Cnidarians
d. Ctenophores
8. Name the three germ layers in order, from outside to inside.
9. Explain the relationship between differentiation and specialization.
10. Give two advantages and two disadvantages of the two types of development. (direct
and indirect developments)
Chapter 33: Porifera, Cnidarians, Ctenophores
1. Sponges are _______ in terms of movement.
a) Sessile
b) Sedentary
c) Motile
2. How do sponges reproduce? Sexually or Asexually?
a) Sexually
b) Asexually
c) Both
3. Which of the three phyla discussed in this chapter are bioluminescent?
a) Porifera
b) Ctenophora
c) Cnidaria
4. All of the following are characteristics of Cnidaria except:
a) Movement by beating cilia
b) Radial symmetry
c) Aquatic
5. The medusa and polyp are specialized for ______ and _____, respectively:
a) Swimming; sessile living
b) Sedentary; swimming
c) Sessile; sessile
6. Also called pores, these penetrate the sponge body and allow water into the organism:
a) Osculum
b) Choanocytes
c) Ostia
7. Members of the phylum ctenophora have a sensory structure that determines their
orientation in water. What structure is this?
a) Apical organ
b) Gemmule
c) Nematocyst
8. Name the benefits a sea anemone obtains from its symbiotic relationship with a clownfish.
What benefit does the clownfish obtain from this relationship?
9. What is the skeletal support of a sponge made up of?
10. Summarize the process of sexual reproduction in sponges.
Chapter 34
1)what are the segmented parts called on a tapeworm?
a)scolex
c)proglottids
b)hooks
d)neck
2) What genus is the roundworm found in?
a)Ascaris
c)rotifera
b)Trichinella
d) Nematoda
3) A pinworm lays their eggs on what part of our epidermius?
a) Mouth
b) Ears
c) Anus
d) Nose
4) What does the greek word for “pharynx” mean?
a) stomach
c)anus
b) throat
d)leg
5)What parasitic worm causes swimmers itch?
a) fluke
c)ascaris
b)tapeworm
d)filarial worm
6) What disease is called by Filarial worm?
a)trichinosis
c)ebola
b)elephantiasis
d)aids
7) What is the function of the Mastax?
a) Breathe
c)breaks down food
b)swim
d)eat
8)What insect carries the roundworm that causes Elephantitus?
9)what stage of the beef tapeworm spend most of its life in?
10) what is the difference between and intermediate and primary host?
Chapter 35 Mollusks and Annelids
1. Name two classes in the phylum Mollusca?
A) Bivalvia and Gastropoda
2. What are the two siphons of a clam called?
A) The Excurrent and Incurrent siphons
3. What are setae?
a. External bristles
b. The liver
c. Ventral nerve cord
4. What coordinates and earthworms body segments?
a. The brain
b. The gizzard
c. Cerebral Ganglia
5. How do earthworms excrete liquid waste?
a. By siphons
b. The nephridia
c. The ganglia
6. All annelids in the classes Oligochaeta and Hirudinea have…
a. Gills
b. Parapodia
c. Segmented coelom
7. Bivalves have all the following except…
a. A radula
b. Adductor muscles
c. Gills
8. A feature shared by mollusks and annelids is…
a. Mantle cavity
b. Radula
c. Trochophore
9. How do mollusks breathe?
a. Through their integument
b. Through their nose
c. Through their gills
10. What is the path of food in an earthworm?
Mouth---esophogus---crop---gizzard---larestine---annus
Chapters 36 & 37
1. How many pairs of antennae do crustaceans have?
A. 2
B. 4
C. 6
D. 1
2. A spider’s respitory system may include _______
A. Spinnerets
B. Pedipalps
C. Tracheae
D. Chelicerae
3. What are the major respitory organs of a crayfish?
A. Gills
B. Lungs
C. Tracheae
D. Book lungs
4. One feature that arthropods share with annelids is _______
A. A closed circulatory system
B. Jointed appendages
C. Ventral nerve chord
D. Lack of cephilization
5. How are mites and ticks different from spiders?
A. Mites and ticks have mandibles
B. Mites and ticks have 2 pairs of antennae
C. Mites and ticks have a unique respatory system
D. Mites and ticks have a fused cephilathortax and abdomen
6. What structure isn’t used for capturing prey or securing and eating food?
A. Mandible
B. Maxilaped
C. Gills
D. Chelipeds
7. The study of insects and other terrestrial arthropods is called ______
A.
B.
C.
D.
Meteorologist
Entomology
Paleontologist
Geologist
Short Answer:
!. Name three ways spiders use silk.
2. List 2 way insects are both harmful and helpful to society
Extended response:
1. In a stagnent pool of water, a crayfish may spend much of it’s time lying with one side of its
carapace near the surface of the water. IN this position it will move the walking legs on that
side in a rhythmic back and forth motion. Explain the likelihood function of this behavior.
Chapter 38
1. In a sea star, gas exchange and excretion of wastes take place by diffusion through
which of the following structures?
a. pharynx
b. skin gills
c. atriopore
d. radial canal
2. Which of the following classes of echinoderms most closely resembles the fossils of
ancient echinoderms?
a. crinoidea
b. asteroidea
c. echinoidea
d. holothuroidea
3. Which of the following types of symmetry is characteristic of echinoderms?
a. biradial
b. bilateral
c. pentaradial
d. pentalateral
4. Which of the following is found in adult tunicates, or sea squirts?
a. eyespots
b. notochord
c. spinal cord
d. pharynx with slits
5. Which phylum do star fish and sand dollars belong in?
a. chordata
b. vertebrata
c. arthropoda
d. echinodermata
6. Cardiac stomach : digestion :: atriopore :
a. excretion
b. respiration
c. circulation
d. reproduction
7. Which of the following is used for movement?
`a. tube foot
b. ossicle
c. test
d. madreporite
Short Answers:
8. Compare sexual and asexual reproduction in sea stars.
9. Identify the function of tube feet in echinoderms.
Extended Response:
10. The fossil record of echinoderms dates to the Cambrian period, more than 500 million
years ago. Scientists have observed many well-preserved echinoderm species from this
period.
Part A: Based on the fossil evidence, which characteristics did the earliest adult
echinoderms have, in terms of symmetry and ability to move?
Part B: Based on your answer to part A, describe the evolution of echinoderms.