Life over Time
Chap. 1 Quiz Study Guide
Using your notes from 1.1, match each description with the correct word
1. ________ Finding the age of fossils using radioactive elements such
as uranium and lead.
A. Water
2. ________ Occurred 140 million years ago, animals called dinosaurs
became extinct during this period.
B. Unicellular
3. ________ When huge numbers of species have died or become
extinct in a very short time.
C. Woolly
Mammoth
4. ________ Large __________ from space that collided with Earth
wiping out most species.
D. Fossils
5. ________ Organisms that are made up of a single cell. They are
responsible for the oxygen that now makes up our atmosphere.
E. Multicellular
6. ________ Needed for organisms to first live and survive on land, they F. Cretaceous
needed structures to get this.
Extinction
7. ________ Occurred 250 million years ago, approximately 90% of the
species living in the ocean became extinct.
G. Absolute Age
8. ________ Last seen about 10,000 years ago. Died without any
offspring.
H. Mass Extinction
9. ________ The remains of organisms preserved in the earth. Best
proof that living things once existed.
I. Meteorite
10. ________ Organisms made up of many cells that first appeared 1.2
billion years ago in the ocean. They combine to make tissues, organs,
and systems.
J. Permian
Extinction
Using your notes from 1.1, answer the following questions
11. How long has the Earth had living organisms on it? _________________________________
12. What were the earliest organisms on Earth similar to? _______________________________
13. When did land organisms first appear? ___________________________________________
14. What was probably the first animal to live on land? _________________________________
15. What is the name of the crater remains that lie off the coast of Mexico that is believed to be
the cause of extinction? __________________________________________________________
Using your notes from 1.2, match each description with the correct word
16. ________ Any inherited trait that gives an organism advantage in its
particular environment.
K. Selection
17. ________ Members of a species that are best suited to their
environment survive and reproduce at a higher rate than other members
of the species.
L. Variation
18. ________ Evolution of new species from an existing species
M. Jean Baptiste de
Lamarck
19. ________ In biology, this refers to the process through which
species changes over time.
N. Speciation
20. ________ Based on survival, more offspring needed with only a few
surviving
O. Natural
Selection
21. ________ French scientist who was the first to propose a model of
how life evolves.
P. Adaptation
22. ________ Organisms with a particular adaptation that are more
likely to survive long enough to reproduce and the adaptation will
become more common
Q. Overproduction
23. ________ British naturalist who sailed along the coast of South
America, with the navy, for 5 years studying organisms.
R. Evolution
24. ________ Within a species, natural differences or variations in traits
S. Isolation
25. ________ the theory that new species can evolve after populations
are separated from their mainland and are not able to breed with their
mainland relatives
T. Charles Darwin
Using your notes from 1.2, answer the following question
26. What organisms did Darwin observe in the Galapagos Islands? _____________________
Using your notes from 1.3, match each description with the correct word
27. ________ Evidence using DNA that supports evolution. Shows
similarities and differences between organisms using gene sequence
U. Vestigial Organs
28. ________ Different species that share similar structures that are
used differently by each species. For example, lizards, bats and
manatees have forelimbs that have similar bone structure
V. Ancestor
29. ________ Like fossils it supports evolution. Studies include the
structure and the development of living things
W. Genetic
Evidence
30. ________ An early form of an organism from which later forms
descend
X. Similar
Structures
31. ________ The codes of life found on genes made up of four nucleic
acids
Y. Biological
Evidence
32. ________ Physical structures that were fully developed and
functional in an ancestral group of organisms but are reduced and
unused in later species
Z. DNA
Using your notes from 1.3, answer the following questions
33. What stage of development shows that organisms look similar? ____________________
34. What is the name of a statement that is based on observations and experiments? _______
__________________________________________________________________________
35. This, along with biological and genetic evidence, supports the theory of evolution. It
provides evidence that two species with a common ancestor can develop differently in
different locations. ___________________________________________________________