12 Jun UMUC BIOLOGY 181 – LIFE IN THE OCEANS
Question
BIOLOGY 181 LIFE IN THE OCEANS
UMUC FALL 2016
QUIZ 1
Directions: Submit the answer sheet to your Assignment Folder NO LATER than 11:59 PM
Sunday 11 October 2015. Submit ONLY the answer sheet.
1. Increasing levels of pollutants at higher levels in the food chain is referred to as:
a) Bioaccumulation
b) Biomagnification
c) Enthalpy
d) Entropy
e) Osmosis
2. An animal whose principle source of body heat is from within is called a(n):
a) Carnivore
b) Decomposer
c) Ectotherm
d) Endotherm
e) Herbivore
3. An animal whose body fluids have the same concentration as that of the surrounding medium
is called a(n):
a) Ectotherm
b) Endotherm
c) Osmoconformer
d) Osmoregulator
e) Poikilotherm
4. Organisms that drift with the current are called:
a) Benthos
b) Ectotherms
c) Homeotherms
d) Nekton
e) Plankton
5. The type of cell division in which the chromosome number is kept constant is called:
a) Angiogenesis
b) Meiosis
c) Mitosis
d) Oogenesis
e) Spermatogenesis
6. Carl Woese divided all prokaryotic organisms into the ____________ and the ____________.
a) Apoda; Caudata
b) Archea; Bacteria
c) Foraminifera; Radiolaria
d) Hexactinallida; Sclerospongia
e) Phaeophyta; Rhodophyta
7. A protein catalyst is called a(n):
a) Enzyme
b) Hormone
c) Interleukin
d) Perforin
e) Vitamin
8. Genetic information is stored in the form of:
a) DNA
b) Lipoprotein
c) Polysaccharide
d) Protein
e) RNA
9. The skeleton in the Hexactinellida contains:
a) Calcium carbonate
b) Calcium phosphate
c) Chitin
d) Polycarbonate
e) Silicon dioxide
10. The ____________ are unique amongst the Animal Kingdom because they move by means
of many cilia arranged into comb plates.
a) Cnidaria
b) Ctenophora
c) Mesozoa
c) Placozoa
d) Polyzoa
11. The ____________ is a feeding organ unique to the Phylum Mollusca.
a) Labium
b) Labrum
c) Maxilla
d) Proboscis
e) Radula
12. The ____________ is a planktonic larval stage unique to the Mollusca.
a) Actinotroch
b) Muller’s larva
c) Pilidium
d) Trochophore
e) Veliger
13. The sequential possession of male and then female reproductive organs by the same
individual is called ____________.
a) Eutely
b) Paedogenesis
c) Protogyny
d) Protandry
e) Simultaneous hermaphroditism
14. The evolution of wings in both insects and birds is an example of:
a) Convergent evolution
b) Disruptive selection
c) Genetic drift
d) Homology
e) Paedogenesis
15. Random changes in gene frequencies in small populations is called ____________.
a) Directional selection
b) Disruptive selection
c) Genetic drift
d) Homology
e) Stabilizing selection
16. Similarity due to common descent is called ____________.
a) Analogy
b) Autapomorphy
c) Eutely
d) Homology
e) Homozygosity
17. A group of populations living in the same place at the same time is called a ____________.
a) Colony
b) Community
c) Deme
d) Ecosystem
e) Superorganism
18. The conversion of atmospheric nitrogen to ammonia, nitrates, and nitrates is called:
a) Ammonification
b) Decarboxylation
c) Denitrification
d) Nitrification
e) Nitrogen fixation
19. ____________ are planktonic algae with calcareous shells that play an important role in
carbon cycling.
a) Coccolithophorids
b) Diatoms
c) Dinoflagellates
d) Foraminifera
e) Radiolaria
20. ____________ are planktonic snails with calcareous shells that play an important role in
carbon cycling.
a) Pteromorphs
b) Pteropods
c) Pteropsida
d) Pterosauria
e) Zygoptera
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