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Thanksgiving Break Practice

Total questions: 32

Worksheet time: 2hrs 46mins

Name
Class
Date
1.

The formation of a new species is called

a)

Natural selection

b)

Struggle for existence

c)

Speciation

d)

Darwinism

2.

The emergence of new rivers or streams is a type of ____________ isolation.

a)

Temporal

b)

Mechanical

c)

Behavioral

d)

Geographic

3.

There are two main ways that speciation happens naturally. Both processes create new species by reproductively isolating populations of the same species from each other. What are these two types of isolation?

a)

geographical and behavioral

b)

geographical and complex

c)

behavioral and complex

d)

locational and geographical

4.

When two or more populations no longer successfully reproduce it is called...

a)

species

b)

order

c)

speciation

d)

a shame

5.

Which are causes of speciation? Choose all that apply

a)

Isolation caused by mountains, rivers and man-made structures

b)

preference for different foods

c)

change in environment

d)

different mating behaviors

6.

The amount of available food can affect an organism's survival.

a)

True

b)

False

7.

Offspring sometimes inherit a gene that has a slight _, or change, from the gene the parent has.

a)

mutation

b)

adaptation

c)

stimulus

d)

response

8.

Mutations can be (check all that apply)

a)

helpful

b)

harmful

c)

have no effect

9.

The process by which populations change over time is called

a)

adaptation

b)

natural selection

c)

evolution

10.

Natural selection acts upon acquired traits, not inherited traits.

a)

True

b)

False

11.

Check any of the following concepts that are part of natural selection.

a)

overproduction

b)

genetic variation

c)

selection

d)

adaptation

e)

playstation

12.

Speciation occurs when two populations of the same species become so different they can no longer interbreed.

a)

True

b)

False

13.

Who developed the Theory of Evolution by Natural Selection?

a)

Robert Hooke

b)

Thomas Malthus

c)

Watson and Crick

d)

Charles Darwin

e)

Gregor Mendel

14.
Dominant or recessive?
tt
a)
Dominant 
b)
Recessive
15.
Dominant or recessive?
Dd
a)
Dominant
b)
recessive
c)
neither
d)
homozygous
16.
What should students use to identify the percent chance of a trait being passed down from a parent to its offspring?
a)
a graph
b)
a flow chart
c)
a data table
d)
a Punnett square
17.
What are the possible combinations of a pea plant with the alleles PP and a male pea plant with the alleles pp.
P= purple
p= white
a)
all Pp
b)
all PP
c)
Pp,PP,Pp,PP
d)
all pp
18.
Homozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
19.
B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
20.
What is a phenotype?
a)
The expression of a trait; physical appearance.
b)
refers to the genetic makeup of an individual
c)
An organism that has the same genes for a trait (ex. TT or tt)
d)
the passing of traits from parent to offspring
21.
This means Different Gene
a)
Dominant
b)
Recessive
c)
Homozygous
d)
Heterozygous
22.
Which evidence of common ancestry is being studied in this visual?
a)
biogeography
b)
fossil record
c)
anatomical homology
d)
molecular homology
23.
Which evidence of common ancestry is being studied in this visual?
a)
biogeography
b)
fossil record
c)
anatomical homology
24.
Scientists compare the limbs of organisms to look for evidence of common ancestry. These limbs provide evidence of common ancestry because they -
a)
perform the same function
b)
are the same size
c)
have the same basic structure
d)
are parts of the same animal
25.
Which evidence of common ancestry is being studied in this visual?
a)
developmental homology
b)
molecular homology
c)
anatomical homology
26.
  If two organisms have the same structures (even if they have a different function ex: leg bones of various mammals), it is considered _________________, but if they have different structures that perform the same function (ex: wings of birds and butterflies), it is considered ____________________.
a)
Analogous; Homologous
b)
b. Helpful; Harmful
c)
c. Homologous; Analogous
d)
d. Harmful; Helpful
27.

_____________ is the sequencing of events based on the order in which they occurred.

a)

Relative Dating

b)

Absolute Dating

c)

Geologic Time

d)

Fossils

28.

_____________ is determining the exact age, in years, of a rock or fossil through radiometric dating.

a)

Relative Dating

b)

Absolute Dating

c)

Geologic Time

d)

Fossils

29.

Examine the image here. Hint: Use the slides to get a better view. Which organism appeared first?

a)

Gastropod

b)

Trilobite

c)

Crinoid

d)

Coral

e)

Ammonite

30.

Examine the image here. Hint: Use the slides to get a better view. Which organism appeared last?

a)

Gastropod

b)

Trilobite

c)

Crinoid

d)

Fern

e)

Ammonite

31.

Examine the image here. Hint: Use the slides to get a better view. Trilobites appeared on Earth __________ gastropods

a)

before

b)

after

32.

Examine the picture here. Use the slides in google classroom to get a better view. Which rock layer is the oldest?

a)

A

b)

B

c)

C

d)

G

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