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Worksheets

4th clicker

Total questions: 17

Worksheet time: 9mins

Name
Class
Date
1.

Which of the following differences between prokaryotic cells and eukaryotic cells is not correct?

a)

Prokaryotic cells lack a nucleus

b)

Prokaryotic cells have small ribosomes

c)

Prokaryotic cells have membrane-bound organelles

d)

Prokaryotic cells have circular chromosomes

e)

All of the above are correct

2.

Protista is a valid kingdom containing organisms that are more related to each other than other groups of organisms

a)

True

b)

False

3.

The study and reconstruction of evolutionary relationships is called

a)

Speciation

b)

Systematics

c)

Evolution

d)

Natural selection

4.

The scientific name of an organism denotes the

a)

Class and order

b)

Family and genus

c)

Kingdom and phylum

d)

Genes and species

e)

Class and family

5.

A Monophyletic group

a)

Consists of a common ancestor and some of its descendents

b)

Does not contain the common ancestor of a group

c)

s not an evolutionarily meaningful group

d)

Consists of only extant living species

e)

Contains a common ancestor and all of its descendants

6.

Derived traits that are shared by all members of a clade are called

a)

Symplesiomorphies

b)

Ancestral

c)

Synapomorphies

d)

Homoplasies

e)

Non-adaptive

7.

Species that is related to the species being classified but is not included in the classification is

a)

A common ancestor

b)

An outgroup

c)

A homoplasy

d)

An infidel

e)

A paraphyletic species

8.

The principle of parsimony states that the hypothesis with the most assumptions is most likely the correct hypothesis

a)

True

b)

False

9.

The direct exchange of genes between unrelated taxa is an example of vertical gene transfer

a)

True

b)

False

10.

Which of the following complicates the construction of monophyletic groups?

a)

Analogous structures

b)

Incomplete fossil record

c)

Convergent evolution

d)

Neutral mutations

e)

All of the above can cause problems

11.

Birds evolved from dinosaurs and are classified as Aves but dinosaurs are classified as Reptilia. Using this model, is Reptilia a monophyletic group?

a)

True

b)

False

12.

Vibrio cholerae is a bacterium that lives in water
and is normally harmless to humans. If infected by
a certain type of virus it acquires the genes to
produce the cholera toxin and now can cause
disease in humans. This acquisition of genes is an
example of

a)

Vertical gene transfer

b)

Independent evolution

c)

Horizontal gene transfer

d)

Induced mutation

e)

Analogous gene transfer

13.

In a phylogeny the most closely related species share

a)

The fewest common ancestors

b)

The most recent common ancestor

c)

No common ancestors

d)

Only distant common ancestors

e)

Nothing

14.

A trait that arose after the most recent common ancestor is a/n _______ trait

a)

Ancestral

b)

Outlying

c)

Derived

d)

Plesiomorphic

e)

Atavistic

15.

Traits that are shared by al members of a clade are called

a)

Symplesiomorphies

b)

Ancestral

c)

Synapomorphies

d)

Homoplasies

e)

Non-adaptive

16.

According to the _____ species concept, a species is a group of populations that is evolving independent from other groups

a)

Biological

b)

Allopatric

c)

Phylogenetic

d)

Atavistic

e)

Descending

17.

Complex structures like the flight-adapted wings
found in birds often arise as completely formed
structures as predicted by the punctuated
equilibrium model

a)

True

b)

False