Download Exam 3 Practice Questions

Practice Exam 3
Supplemental Instruction
Iowa State University
Leader: Tyler
Course: Biology 211 (3)
Instructor: Rice
Date:
26. What is developmental biology?
a) The study of processes from a single cell to a
multicellular organism
b) The study of how organisms are constructed
c) The study of embryonic growth
d) The study of developmental mutations
e) All of the above
28. The fate of the blastopore distinguishes between
Protostomes in which it becomes the___________, and
Deuterostomes in which it becomes the___________.
a) mouth, coelom
b) anus, mouth
c) coelom, archenteron
d) mouth, anus
e) none of the above
29. At which developmental stage should one be able to
first distinguish a protostome embryo from a
deuterostome embryo?
a) cleavage
b) metamorphosis
c) gastrulation
d) fertilization
e) coelom formation
31. Which of the following is a characteristic found only
in animals?
a) Multicellular
b) Cell walls of cellulose
c) Absorptive nutrition
d) proteins hold cells together
e) Heterotrophs
34. What is the function of a coelom?
a) The fluid-filled cavity cushions and protects the
organs.
b) It is a place for muscle attachment.
c) It is where digestion occurs.
d) It is where fertilization occurs.
e) All of the above are correct
37. Pseudocoelomates are animals that _____.
a) do not have a brain
b) do not have mesoderm tissue
c) have protostome development
d) have a coelom that is not completely lined with
mesoderm
e) have a solid body without a cavity
40. _________ is a process that rearranges the
developing embryo to form germ layers.
a) Gastrulation
b) Cleavage
c) Mitosis
d) Blastulation
e) Blastopore
41. __________ is an important developmental process,
when a single-cell zygote undergoes mitotic cell division
to become multicellular.
a) Fertilization
b) Gastrulation
c) Cleavage
d) Meiosis
e) Blastulation
43. The Porifera have choanocytes, a unique cell type in
Kingdom Animalia. Which protist is structurally similar
to choanocytes?
a) dinoflagellates
b) choanoflagellates
c) apicomplexans
d) euglena
e) diatoms
44. The common ancestor of all animals was probably a
______.
a) bacterium
b) Archea
c) fungus
d) protist
e) Bryophyte
47. You are trying to identify an organism. It is an
animal, but it does not have nerve or muscle tissue. It is
neither diploblastic nor triploblastic. It is probably a __.
a) comb jelly
b) sponge
c) flatworm
d) nematode
e) jellyfish
50. The characteristic of Cnidaria that distinguishes it from all other animal phyla is ____.
a) a gastrovascular cavity
b) three germ layers
c) true tissues
d) radial symmetry
e) hydrostatic skeleton
51. All of the following are characteristics of the phylum Cnidaria except ___.
a) a gastrovascular cavity
b) a polyp stage
c) a medusa stage
d) cnidocytes
e) a pseudocoelom
52. The ______ is a cell type found only in Cnidaria and is used to capture prey.
a) blastocyst
b) cnidocyte
c) osculum
d) choanocyte
e) amoebocyte
54. The ______ is a cell type found only in Porifera and is used to engulf food particles by phagocytosis.
a) blastocyst
b) cnidocyte
c) osculum
d) choanocyte
e) amoebocyte
55. A ___________ is used for digestion, but has only a single opening.
a) gastrovascular cavity
b) intestine
c) gut
d) pharynx
e) B and C are correct