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BH Evolution

Total questions: 39

Worksheet time: 28mins

Name
Class
Date
1.

The wings of flightless birds, like the ostrich, are an example of ______. They are features that have lost or almost lost their original function/purpose.

a)

Vestigial structures

b)

Analogous structures

c)

Homologous structures

2.

Body structures that are similar in anatomical structure, but completely different in function due to organisms living in different environments. These come from a common ancestor.

a)

Vestigial structure

b)

Analogous structure

c)

Homologous structure

3.
Which of the following is a term for a group of similar organisms that can reproduce fertile offspring?
a)
individual
b)
population
c)
species
d)
fossil
4.
Mutations are important because they bring about
a)
death of the organism in which they develop
b)
genetic variation needed for a population to evolve
c)
benefits for the individual, not for the population
d)
Hardey-Weinberg equilibrium within a population
5.
Inherited trait that helps an organism survive is a(n) __________.
a)
Fossil
b)
Adaptation
c)
Ancestor
d)
Natural selection
6.
The ability of an organism to survive and reproduce in its specific environment 
a)
diversity.
b)
evolution
c)
adaptation
d)
 fitness
7.
A __________ is a branching diagram that shows evolutionary relationships.
a)
cladogram
b)
table
c)
derived character
d)
relationship tree
8.
__________ characters are similar characteristics that have evolved separately in two unrelated organisms.
a)
analogous
b)
homologous
c)
cladistic
d)
phylogenic
9.
Genetic drift is change in the allele frequency of a population due to...
a)
random chance
b)
natural selection
c)
non-random mating (sexual selection)
d)
artificial selection
10.
This mechanism of evolution occurs when populations migrate.
a)
Extinction
b)
Gene flow
c)
Genetic drift
d)
Natural Selection
11.
The process by which organisms change over time is:
a)
Diversity
b)
Descent
c)
Evolution
d)
Unity
12.

Over the years, white mice became extinct and darker mice survived. This is

a)

stabilizing selection

b)

directional selection

c)

disruptive selection

d)

due to exercise

13.

Average phenotypes are favored in the environment, while extremes have lower survival rates.

a)

seasonal selection

b)

distruptive selection

c)

directional selection

d)

stabilizing selection

14.

Two populations of the same species are separated by land barriers like rivers or mountains.

a)

geographical isolation

b)

temporal isolation

c)

adaptive ratiation

d)

behavioral isolaton

15.

Two populations of the same species do not have the same mating rituals or signals.

a)

geographical isolation

b)

temporal isolation

c)

adaptive ratiation

d)

behavioral isolaton

16.
When a population is in Hardy-Weinberg equilibrium,  what is NOT happening to the species?
a)
Survival
b)
Reproduction
c)
Death
d)
Evolution
17.
Gene flow involves
a)
Natural disasters killing most of the members of a population
b)
Individuals moving into and out of the population
c)
Selective mating
d)
Small changes because of the environment
18.
In the Hardy-Weinberg theorem, p refers to what?
a)
The frequency of the dominant allele.
b)
The frequency of the homozygous genotype.
c)
The frequency of the recessive allele.
d)
The frequency of the homozygous dominant.
19.
Which of the following is an example of the bottle neck effect?
a)
Bald Eagles are hunted until near extinction, population recovers.
b)
Small group of iguanas floats to an island, starts a new population.
c)
Red fox pups are more likely to survive in a snowy environment if they are born white.
d)
Farmer chooses seeds from largest apples to plant next year.  This results in larger apples from year to year.
20.

In the Hardy-Weinberg Equation, q2 is the frequency of what?

a)

The recessive allele

b)

the dominant allele

c)

the recessive genotype

d)

the dominant genotype

21.

What is an example of sexual selection?

a)

One sex of an organism is preferred over the other

b)

A small subgroup of a population leaves and forms a new population

c)

Female birds prefer male birds with red feathers

d)

Individuals move between two populations, exchanging genes

22.

What type of selection is depicted in the picture?

a)

stabilizing

b)

directional

c)

disruptive

23.
Which of the three graphs shows disruptive selection?
a)
A
b)
B
c)
C
24.

The Founder Effect happens when

a)

a chance disaster occurs that kills randomly kills some of the population.

b)

a small group leaves their main population and starts a new population in a new area, like an island.

c)

changes in allele frequency occur due to natural selection

25.

Classifies organisms based on observable traits.

a)

Biological species concept

b)

Morphological species concept

c)

Genealogical species concept

d)

Ecological species concept

26.

Reproductive barrier that exists prior to the formation of a zygote.

a)

Pre-zygotic

b)

Post-zygotic

c)

Para-zygotic

d)

Multi-zygotic

27.

Reproductive barrier that exists after to the formation of a zygote.

a)

Pre-zygotic

b)

Post-zygotic

c)

Para-zygotic

d)

Multi-zygotic

28.

Pre-zygotic barrier in which organisms mate at different times (seasons, times of day/year, etc.).

a)

Temporal isolation

b)

Habitat (geographic) isolation

c)

Behavioral isolation

d)

Mechanical isolation

e)

Gametic isolation

29.

A new river forms and splits two populations, causing ______________ speciation

a)

Sympatric

b)

Allopatric

c)

Extreme

d)

Convergent

30.

Orcas occur in the same habitat but some are avoiding each other and do not interbreed. They have different diets, vocal behavior, and social structures. What type of speciation is this?

a)

Allopatric

b)

Sympatric

c)

Complex

d)

Covergent

31.

Changes in allele frequencies within a population over time is

a)

macroevolution

b)

allopatric speciation

c)

microevolution

d)

postzygotic barrier

32.
a)
The image shows analogous structures.
b)
The image shows convergent evolution.
c)
The image shows adaptive radiation. 
d)
The image shows organisms that are not closely related.
33.
The production of many species from one ancestral species is __ __.
a)
selective breeding
b)
adaptive radiation
c)
genetic variability
d)
evloution
34.
What type of evolution where there is a sudden, rapid change then no change for a long time?
a)
Co-Evolution
b)
Punctuated Equilibrium
c)
Divergent Evolution
d)
Convergent Evolution
35.

Evolution occurring gradually and slowly over long periods of time

a)

Homeostasis

b)

Stasis

c)

Punctuated Equilibrium

d)

Gradualism

36.

These were the earliest fossils.

a)

eukaryotes

b)

RNA

c)

Protein

d)

prokaryotes

37.

These types of cells were the first to form and lived in the ocean waters.

a)

eukaryotes

b)

lung cells

c)

zooplankton

d)

prokaryotes

38.

These cells are complex, have membrane bound organelles and are newer.

a)

eukaryotes

b)

bacterial cells

c)

prokaryotes

d)

RNA

39.

New layers of sediment cover older ones and compress them into layers of rock called

a)

fossils

b)

layerization

c)

strata

d)

Pangea

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