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etH - phylogeny 5.2.25

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

Phylogenetic trees show...

a)

Evolutionary relationships between different species

b)

How one species has evolved through time

c)

Which species has evolved the most

d)

Which species have evolved from other species

2.

According to maximum parsimony...

a)

The simpler your phylogenetic tree, the better

b)

Phylogenetic trees should have many branches

c)

All organisms in a phylogenetic tree must descend from a common ancestor

d)

Phylogenetic trees must show all traits

3.

The groups in a phylogenetic tree are called...

a)

Taxa

b)

Nodes

c)

Roots

d)

Branches

4.

Phylogenetic trees show...

a)

Homologous structures through divergent evolution

b)

Homologous structures through convergent evolution

c)

Analogous structures through divergent evolution

d)

Analogous structures through convergent evolution

5.

Places on a phylogenetic tree where organisms share a common ancestor are called...

a)

Nodes

b)

Branches

c)

Taxa

d)

Species

6.

If you were building a phylogenetic tree of cats, which of the following would be the best outgroup?

a)

wolf

b)

domestic cat

c)

frog

d)

leopard

7.

What is the primary purpose of a phylogenetic tree?

a)

To display the genetic makeup of organisms

b)

To categorize species based on their size

c)

To illustrate the evolutionary relationships among species

d)

To show the geographical distribution of species

8.

In a phylogenetic tree, what does a branch point represent?

a)

A geographical barrier

b)

A mutation in the genetic code

c)

A common ancestor of the descendant species

d)

A species that has gone extinct

9.

What number is the common ancestor of C and D

a)

1

b)

2

c)

3

d)

4

10.

A close common ancestor for both B and D could be at position __.

11.

From an evolutionists' perspective, close common ancestor for both B and D could be at position __.

12.

A scientist compared the amino acid sequences of the protein aquaporin in four animal species. Use the molecular data to construct a cladogram that shows how they are related.

13.

Based on the given cladogram, which organism is the outgroup?

a)

Human

b)

Chimpanzee

c)

Gorilla

d)

Orangutan

e)

Gibbon

14.
According to the cladogram, which organism is most distantly related to the human?
a)
crayfish
b)
grasshopper
c)
perch
d)
frog
15.

What questions do you have about phylogeny?

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