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Phenetic Trees and Cladograms

Phenetic Trees and Cladograms

Assessment

Interactive Video

Biology, Science, Other

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

In this video tutorial, Mr. Bradstreet and Coach Eel discuss cladograms and dichotomous keys, two tools used in taxonomy to understand evolutionary relationships and identify organisms. They explain how cladograms depict evolutionary traits and relationships among species, using examples from biology and transportation. The video also introduces phenetic trees, which show genetic differences among species. Finally, the instructors demonstrate how to use dichotomous keys to identify organisms, providing a practical example. The tutorial aims to enhance understanding of these concepts and their applications in biology.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of a cladogram?

To display the geographical distribution of species

To show the physical characteristics of organisms

To illustrate evolutionary relationships among organisms

To list all known species in a region

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a cladogram, where are the ancestral traits typically located?

At the top or towards the right

In the center

At the bottom or towards the left

Randomly distributed

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is considered a derived trait in the transportation example?

Engine

Wings

Wheels

Doors

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When constructing a cladogram, which organism is placed at the base?

The one with the most similar traits

The one with the most derived traits

The one with the least derived traits

The one with the most complex traits

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What characteristic did the lizard evolve from the fish in the cladogram example?

Four limbs

Watertight egg

No tail

Fur

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a phenetic tree primarily used for?

To show evolutionary relationships

To list species in alphabetical order

To display physical characteristics

To illustrate genetic divergence

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which species has the greatest genetic difference from Canis lupus according to the phenetic tree?

Felis catus

Canis latrans

Panthera pardus

Lutra lutra

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