Download Practice Test – Geology 106, Chapter 18 from The Changing Earth

Practice Test – Geology 106, Chapter 18 from The Changing Earth
written and formatted by Joseph Wilkinson
1. What is a fossil?
2. What are the conditions required for fossilization? _______________ and
_______________.
3. The concept of a species as we know it today was introduced by
_______________ in his book _______________.
4. Separate species can/cannot interbreed (circle correct answer).
5. Soft body tissue is more likely/less likely (circle correct answer) to be preserved
than hard body parts, due to a) decay, b) scarcity, c) scavenging, d) abundance, e)
high carbon content, f) d and e, g) a and b, h) b and d.
6. Carbonization is an altered preservation of soft body parts that occurs primarily to
a) reptiles, b) fish and leaves, c) birds, d) one-celled organisms, e) shells.
7. Fossilized internal molds are primarily imprints of bivalves and gastropods.
TRUE/FALSE
8. Describe four ways by which soft body tissue can be preserved.
9. List three hard body parts that are often preserved unaltered.
_______________, _______________, and _______________.
10. An imprint of an internal surface of an organism is known as a) an internal cast, b)
an internal mold, c) an external cast, d) an external mold, e) a cast.
11. The taxonomies used today to classify animals and plants scientifically were
devised by _______________, who presented them in his books
_______________ and _______________.
12. Describe permineralization, petrification, recrystallization, and pyritization.
13. List three ways by which the hard body parts of an organism are altered and
preserved. _______________, _______________, and _______________.
14. Alfred Russell Wallace did not believe that any species had ever gone extinct.
TRUE/FALSE
15. Charles Darwin collected data that he ultimately synthesized into his theory of
natural selection during an 1831 trip to the _______________ Islands. In 1859,
he published a book called _______________, in which he presented his theory
and the arguments in its favor.
16. What is the difference between a gastrolith and a coprolite?
17. List (in order) the primary links in the food chain. _______________,
_______________, _______________, _______________, and
_______________.
18. Describe and explain Charles Darwin’s ideas on the origin of species by natural
selection.
19. Georges Cuvier used comparative anatomy to support the work of Jean Baptiste de
Monet de Lamarck. TRUE/FALSE
20. _______________ believed that individual organisms could acquire characteristics
during their ontogeny (development) in response to environmental stimulation or
change. _______________ believed that these characteristics were heritable.
21. What is a species?
22. List (in order) the primary taxonomical groups used to classify plants and animals
scientifically. _______________, _______________, _______________,
_______________, _______________, _______________,
_______________.
23. Current evolutionary theory is known as a) the Theory of Evolution, b) the Theory
of Natural Selection, c) the Law of Evolution, d) the Darwin Theory, or e) the
Wallace-Darwin Theory.
24. What is the difference between adaptive radiation (divergence) and adaptive
convergence?
25. Name five common causes of extinction. _______________, _______________,
_______________, _______________, and _______________.
26. List three patterns of evolution. _______________, _______________, and
_______________.
27. Name six pieces of evidence for organic evolution.
______________________________, ______________________________,
______________________________, ______________________________,
______________________________, and
______________________________.
ANSWERS:
1. A fossil is any evidence of life preserved in a material from the geologic past.
Fossils must be more than five thousand years old.
2. quick burial and hard body parts.
3. George de Buffon; Histoire Naturale.
4. cannot.
5. B (fish and leaves)
6. less likely; G (scavenging and decay).
7. TRUE
8. Soft body tissue can be preserved by refrigeration in permafrost areas, by
desiccation in arid climates (the water is removed from the tissue, delaying or
preventing decay), by preservation in tar pits like the famous La Brea Tar Pits in
Los Angeles (bones are particularly porous; they absorb tar, aiding their
preservation), and by preservation in amber (sap, originally exuded by conifers and
then hardened; this type of preservation applies almost exclusively to insects).
9. shells, bones, and teeth.
10. B (an internal mold).
11. Carolus Linnaeus; Systema Naturae and Species Plantarum.
12. Permineralization, petrification, recrystallization, and pyritization are all processes
by which hard body parts of living organisms are altered and preserved as fossils.
During permineralization (also known as “partial replacement”), ground water
deposits silica into the pores of a material, usually bone or wood. Some tissue
remains, but the material is preserved. Petrification (also known as “complete
replacement”) is very similar to permineralization, but the tissues themselves are
eventually replaced by silica - none of the original material is preserved. During
recrystallization, the calcite comprising a shell is gradually dissolved, to be replaced
with more calcite (with larger crystals). Pyritization is the deposition of a
protective layer of pyrite over an object, usually a shell.
13. permineralization, petrification, recrystallization, and pyritization.
14. FALSE; Jean Baptiste de Monet de Lamarck believed the concept of species
extinction to be invalid.
15. Galapagos Islands; On the Origin of Species.
16. A gastrolith is a rock from the gizzard of a large herbivorous dinosaur. Coprolites
are comprised of fossilized fecal matter.
17. solar energy (the sun), primary producers (plants), primary consumers (herbivores),
secondary consumers (carnivores), decomposers (bacteria, maggots, carrion
feeders).
18. Charles Darwin believed that individual traits could be inherited, and that
environmental factors (such as climate, food, oxygen, predation, competition, and
disease) determined which individuals survived to reproduce (and pass on their
genes). This system (natural selection) resulted in the continuation of the
attributes most suited to the surrounding environment, and the “survival of the
fittest” individuals.
19. FALSE; Cuvier attempted (and failed) to use his field, comparative anatomy, to
oppose Lamarck’s budding theories.
20. Erasmus Darwin; Jean Baptiste de Monet de Lamarck.
21. A species is a group of individuals with identical or nearly identical anatomy
(excepting sex differences) that is distinct from that of other groups. Individuals
within a species are able to interbreed and produce fertile, viable offspring.
22. Kingdom, Phylum, Class, Order, Family, Genus, Species.
23. E (the Wallace-Darwin Theory).
24. When similar creatures look different because they adapted to different
environments, this is known as adaptive radiation (divergence). When different
creatures look similar because they adapted to the same environment, this is known
as adaptive convergence.
25. disease, predator introduction, climate change, catastrophe, and food-supply loss.
26. adaptive radiation (divergence), adaptive convergence, and extinction.
27. the branching organization of life, comparative anatomy (homologous and vestigial
organs), embryology, geographic distribution of species, fossils, and genetics.