Download Evolution Unit Name: Study Guide ___ Evolution ___ Extinct ___

Evolution Unit
Name:___________________________________________
Study Guide
___ Evolution
A. The preserved or mineralized remains of an organism that lived long ago.
___ Extinct
B. Descent with modification from a common ancestor OVER TIME.
___ Population
C. Individuals moving INTO a population.
___ Adaptation
D. Individuals moving OUT of a population.
___ Natural Selection
E. All the individuals of a species that live in one place at one time.
___ Isolation
F. Organisms that are genetically similar & can reproduce to make fertile offspring.
___ Species
G. Process by which populations change in response to their environment.
___ Fossil
___ Paleontologist
H. Two populations of the same species get separated and eventually cannot
breed with each other.
I. Scientists who study fossils.
___ Vestigial Structure
J. Structures that have been reduced in size & are no longer useful.
___ Homologous Structure
___ Darwin
K. Frequencies of alleles in a population do not change unless evolutionary forces
act on the population. (p+q)2 = p2 + 2pq + q2 = 1
L. A trait that allows a species to be better suited to its environment..
___ Hardy-Weinberg Principle
M. Structures that are similar in structure but differ in function.
___ Immigrants
N. Naturalist that said that evolution occurs by way of natural selection.
___ Emigrants
O. Species that have disappeared permanently.
Evolution Unit
Study Guide
Read the following scenarios. Choose the best answer. Read carefully.
I.
II.
III.
Each spring, red-winged blackbirds fly north from their wintering areas to nest and raise babies. The males arrive first
and compete for the best nesting territories, resulting in many males that do not get territories. The females then
arrive and mate with the males who have territories. This is a result of
A.
Non-random mating.
B.
Mutation increasing particular individuals’ likelihood of mating
C.
Natural selection weeding out those individuals who are not strong enough to fly north.
A large population of flightless birds lives on a massive island in the Pacific Ocean. The island sinks, isolating five
populations of this species on different smaller islands that were once mountains. If the factors necessary for the
Hardy-Weinberg equilibrium to work are active, what would we expect?
A.
There will be no difference in the genetic variability among all the populations.
B.
The populations on the smallest islands will have the greatest variability.
C.
The populations on the largest islands will have the greatest variability.
Several species of extinct giant tortoise lived on different islands in the Indian Ocean. One species is still alive on
Aldabra Island. The shells and skins of the extinct tortoises are in museums and can be studied. What is the most
accurate way to find out how closely related the living one is to the extinct one?
A.
Compare the DNA sequence of all the tortoise species, extinct and living.
B.
Search the history records of what the extinct tortoises look like.
C.
Compare the bones and shells of the extinct tortoises to each other.
Evolution Unit
Name:___________________________________________
Study Guide
What was Darwin’s theory about the finches on the Galapagos Islands compared to the ones on the South American
mainland?
What two things are required for evolution to occur? _________________________________________________________
Describe camouflage and give a specific example
Will the offspring of a parent who goes to the tanning bed daily be born with tan skin? circle = Yes or No
Are a canary and a parakeet the same species? circle = Yes or No.
Explain.
Explain.
Example of mimicry: a coral snake is deadly venomous while a scarlet kingsnake is not. Both look very similar to one
another although they are two different species.
The coloration is so similar that this phrase was created to help people remember:
“If red touches yellow, you're a dead fellow; if red touches black, you're all right, Jack."
How does this mimicry adaptation help the scarlet kingsnake?