Exam 2 Review (Practice Exam 2)
Worksheet 2.5
Supplemental Instruction
Iowa State University
**Look at book questions for extra practice!!
Leader:
Course:
Instructor:
Date:
Hannah
BIOL 211 (2)
Dr. Waldman
02/12/15
1.) What synapomorphy distinguishes animals from choanoflagellates?
a. Coloniality
b. Heterotrophy
c. Multicellularity
d. Habitat
2.) What 2 characteristics do all animals except for sponges have?
3.) Distinguish between a diploblast and triploblast.
a. Differentiate between coelomates, acoelomates, & pseudocoelomates.
b. True or False: All coelomates are triploblasts.
4.) For the pictures below, state whether the animal demonstrates radial or bilateral
symmetry.
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5.) Bilaterally symmetric animals have a _______________ nervous system while radially
symmetric animals have a ________________ _____________.
6.) How do protostomes and deuterostomes differ in their gastrulation (formation of mouth
or anus) and their formation of a coelom?
7.) What are the 4 general feeding strategies given in class? Give an example w/ each.
8.) Explain how an animal mother nourishes an embryo in an oviparous, viviparous, and
ovoviviparous species.
9.) Which of the following is not a characteristic of Cnidaria?
a. Exhibit radial symmetry
b. Use cnidocytes to capture prey
c. Undergo a 2-stage lifecycle
d. Have a central nervous system
10.) True or False: Porifera, Ctenophora, and Cnidaria are the most ancient of all major
animal lineages.
11.) How do Cnidarians and Ctenophores differ in terms of feeding?
12.) What are some common characteristics of protostomes?
13.) What were three big adaptations that were required for protostomes to thrive on land?
14.) ____________________________ & _________________________ are the two main
subgroups within the protostomes.
a. Name and define the three unique morphological traits that characterize the
“Lophotrochozoan” lineage.
b. True or False: All organisms belonging to the Lophotrochozoan lineage possess
all 3 of these unique morphological traits.
15.) Put the following lineages in order from least diverse (number of named species) to most
diverse: Annelida, Mollusca, Arthropoda, Rotifera.
a. Annelida, Rotifera, Mollusca, Arthropoda
b. Mollusca, Rotifera, Annelida, Arthropoda
c. Rotifera, Annelida, Arthropoda, Mollusca
d. Rotifera, Annelida, Mollusca, Arthropoda
16.) Give the common name and at least one defining characteristic for the following
Lophotorozoan lineages.
a. Rotifera:
b. Platyhelmintes:
c. Annelida:
d. Mollusca:
17.) Which of the following Molluscan sub-lineages are characterized by a 2 part shell and
lack a radula (rasp-like feeding structure to scrape food off substrates)?
a. Gastropoda
b. Bivalvia
c. Cephalopoda
d. Polyplacophora
18.) Which protostome lineage is distinguished by having body segments organized into
tagmata?
a. Mollusca
b. Annelida
c. Arthropoda
d. Nematoda
19.) What 2 characteristics define Ecdysozoans?
a. Compare & contrast the characteristics of Onychophora and Tardigrada to
Arthropoda.
b. Which of the following is not a defining characteristic of the body plan of
Arthropods?
i. Segmented body
ii. Jointed appendages
iii. Lack of sensory organs
iv. Chitinous exoskeleton
20.) Name and explain the 2 different hypotheses for the origin of the wing.
21.) Name and define the two types of insect metamorphosis. Which is most common?
22.) Which Arthropod lineage is defined by 6 pairs of appendages & single lens eyes?
a. Myriapoda
b. Crustacea
c. Chelicerata
d. Insecta
23.) Which Arthropod lineage is defined by a carapace and 2 pairs of antennae?
a. Myriapoda
b. Crustacea
c. Chelicerata
d. Insecta
24.) The Insecta lineage Coleoptera is characterized by which type of wings?
a. Halteres (reduced hindwings)
b. Membranous wings that lock together
c. Scales on their wings
d. Elythra (hardened forewings)
25.) Which of the following Insecta lineages are characterized by muscular hindlegs for
jumping?
a. Odonata
b. Phthiraptera
c. Hemiptera
d. Orthoptera
26.) Which of the following is not a characteristic of the deuterostome lineage
Echinodermata?
a. Central nervous system
b. Endoskeleton of calcium carbonate plates
c. Water vascular system and tube feet
d. No specialized respiratory, circulatory, or excretory systems
27.) List the 4 characteristics that all Chordates possess at some point in their lifetime.
a. True or False: All chordates are vertebrates.
28.) Compare and contrast Cephalochordata and Urochordata.
29.) What trait(s) define(s) the vertebrates?
a. Jaws and a spinal cord
b. Vertebrae and a cranium
c. Endoskeleton constructed of bone
d. Endoskeleton constructed of reinforced cartilage
30.) What happens to the 4 chordate characteristics in vertebrates during development?
31.) List in order the 5 important evolutionary innovations that occurred in vertebrates and
around the time period in which they occurred.
32.) Which two lineages are the only jawless vertebrates?
a. Actinistia & Dipnoi
b. Lepidosauria & Testudinia
c. Myxinoidea & Petromyzontoidea
d. Chrondrichthyes and Actinopterygii
33.) Which lineage is characterized by a cartilaginous skeleton?
a. Actinopterygii
b. Dipnoi
c. Chondrichthyes
d. Amphibia
34.) What characteristics do the lungfish and coelacanth possess that makes them a link
between fishes and tetrapods?
35.) What groups of animals are collectively known as Amniotes?
a. Amphibians and reptiles
b. Mammals and amphibians
c. Only reptiles
d. Mammals and reptiles
36.) What are the characteristics of the lineage Mammalia?
a. Name the 3 mammalian lineages and give at least 1 characteristic.
37.) True or False: Birds are a reptilian lineage.