Exam Review I:
Exam I (chap 1,7,28, 29, 30, 33, 34)
Supplemental Instruction
Iowa State University
Leader: Julie
Course: Biology 211
Instructor: Dr. Holscher
1. The field of biology that is concerned with the describing, naming, and classifying living
and extinct organisms and viruses.
a. Systematics
b. Ontogeny
c. Taxonomy
d. Phylogeny
2. Study of biological diversity and evolutionary relationships.
a. Systematics
b. Ontogeny
c. Taxonomy
d. Phylogeny
3. The evolutionary history of a species is it’s what?
a. Systematics
b. Ontogeny
c. Taxonomy
d. Phylogeny
4. Which order of hierarchical groups is correct?
a. Kingdom, Phylum, Order, Class, Family, Genus, Species
b. Genus, Family, Genus, Phylum, Order, Kingdom, Species
c. Phylum, Kingdom, Class, Order, Family, Genus, Species.
d. Kingdom, Phylum, Class, Order, Family, Genus, Species
5. Prokaryotes have which of the following?
a. Nucleus
b. Golgi Apparatus
c. Ribosomes
d. Mitcondria
6. A branching point in a phylogenetic tree is called _____.
a. Node
b. Anagenesis
c. Splice
d. Cladogenesis
7. Where a single species diverges into two or more species is called ________.
a. Node
b. Anagenesis
c. Splice
d. Cladogenesis
8. Where a single species evolves into a different species is called ______.
a. Node
b. Anagenesis
c. Splice
d. Cladogenesis
9. A common ancestral species and its entire descendant species from a phylogenetic tree is
called a ____.
a. Clade
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b. Family
c. Ancestors
d. Node
10. Which domain has membrane lipids with ether linkages, that help resist damage by heat
and extreme conditions?
a. Archaea
b. Bacteria
c. Bryophytes
d. Protists
11. Which of the following is an Archaea but also thrives in salty environments?
a. Hyperthermophiles
b. Cyanobacteria
c. Halophiles
d. Protezoa
12. What produced earth’s first oxygen rich atmosphere? (Which in turn allowed the rise of
a. Hyperthermophiles
b. Cyanobacteria
c. Halophiles
d. Protezoa
13. Gram Postive bacteria have a ______ peptidoglycan cell wall.
a. Thin
b. Thick
14. Gram Negative bacteria have a ______ peptidoglycan cell wall and a lipopolysaccharide
outer envelope.
a. Thin
b. Thick
15. Bacteria and Archaea reproduce asexually by….
a. Mitosis
b. Meiosis
c. Binary Fission
d. Alternation of generations
16. If Julie has a disease with a bacteria called Vibrio cholorae , the bacteria would most
likely be
a. Circular
b. Rod shaped
c. Comma shaped
d. Spiral shaped
17. The best way to describe a symbiotic relationship is
a. Two different organisms living together
b. Two organisms benefiting
c. One organism benefits, one is harmed
d. One organism benefits, the other is not affected
18. Meiosis can only occur in
a. humans
b. bacteria
c. archaea
d. dipoid (2n) cells
19. Metabolism varies with respect to oxygen in prokaryotes, so which of the following
requires oxygen for surivial.
a. Obligate Aerobes
b. Facultative Anaerobes
c. Obligate Anaerobes
d. Aerotolerant Anaerobes
20. The first mitochondria probably came from
a. Ectosymbiosis
b. Random chance
c. Endosymbiosis
d. Technological innovation
21. The Phylum Rhizaria is often characterized by unicellular organisms that lack cell walls
and have shell-like coverings. Which one is a common organism of this phylum (and how
it moves)?
a. Plantae – I don’t move
b. Dipolmonads - flagella
c. Forminiferans - pseudopodia
d. Cilliate – Cillia
22. The process of using bacteria as a way to clean stuff (for example an oil spill) is called?
a. Bioremediation
b. Bacteria Attack!
c. Antibiotics
d. GMO’s
23. The Earth’s first eukaryotes were ______.
a. Diazotrophs
b. Protists
c. Flagellas
d. Euphylss
24. True or False: Some protists are photosynthetic.
a. True
b. False
25. When an organism of one species lives inside another organism it is called?
a. mutualism
b. phagocytosis
c. endosymbiosis
d. commensalism
26. Dinoflagellates can “bloom” on the surface of water when conditions are right, causes
which of the following?
a. Scum
b. Red Tides
c. Moss
d. Endospores
27. Genetic variation in ciliates results from a process called?
a. conjugation
b. Binary fission
c. Alternation of generations
d. Secondary symbiosis
28. True or False: Most protists are found in dry, terrestrial habitats?
a. True
b. False
29. Protists have a variety of ways to obtain nutrients. Some of them do this by
a. photosynthesis
b. ingestion
c. absorption
d. all of the above
30. In Protostomes, the cleavage is
a. Spiral and indeterminate
b. Spiral and determinate
c. Radial and indeterminate
d. Radial and determinate
31. In Deuterostomes
a. The mouth forms first
b. The arms form first
c. The anus forms first
d. The legs form first
32. The Mesoderm forms the
a. Nervous system
b. Skin
c. Digestive tract
d. Circulatory system, muscle, organs and bones
33. After cleavage, a multicellular _____________ is formed
a. Zygote
b. Gastrula
c. Blastula
d. Baby
34. The central nervous system is a product of
a. Cephalization
b. Gastrulation
c. Radial symmetry
d. Lots of cells
35. Animals with bilateral symmetry have _____ germ layer
a. 1
b. 2
c. 3
d. 4
36. Radial symmetry means that the organism is
a. A sponge
b. Diploblastic
c. A pizza
d. Triploblastic
37. Embryonic germ layers in animals are formed during
a. Fertilization
b. Gastrulation
c. Plasmogamy
d. Cephalization
38. Protists can be labeled according to the type of habitats in which they live, which are the
protists that are swimming or floating
a. phytoplankton
b. periphyton
c. pseudopodia
d. pilli
39. Hox genes control
a. Mitosis
b. Meiosis
c. Body function
d. Body formation
40. Chitons are most likely
a. A fungus
b. Clams and mussels
c. Octopi
d. Mollusks
41. The common name for Platyhelminthes is
a. Segmented worms
b. Flatworms
c. Tube worms
d. Stripped worms
42. A sail has a ________ circulatory system
a. Book lung
b. Closed
c. Fluid
d. Open
43. Torsion is when
a. The visceral mass forms
b. The circulatory system goes from open to closed
c. The visceral mass rotates 180 so the anus is above the head
d. The snail goes really fast!
44. Butterflies go through complete metamorphosis, this means
a. Larva  pupa  adult
b. Pupa  larva  adult
c. egg  larva  pupa  adult
d. egg  pupa  larva  adult
45. Dr. Holscher used Spongebob as an example of
a. Hexapoda
b. Myriapoda
c. Chelicerata
d. Crustacea
46. Nematodes are considered
a. Pseudocoelomates
b. Acoelomates
c. Coelomates
d. Julie’s Mates!
47. The time period with a massive explosion of life is the
a. Carboniferous
b. Cretaceous
c. Cambrian
d. Now
48. Organisms known for their glass like appearance and diatomaceous earth are
a. Forminapherans
b. Brown algae
c. Euglena
d. Diatoms
49. Carl Von Linne was known most for
a. Five kingdom system
b. Two kingdom system
c. Binomial nomenclature
d. Fossils
50. True or false: Flagella are used for attachment
a. True
b. False

Exam Review for Test 1 - Iowa State University