
Understanding Cladograms and Dichotomous Keys

Interactive Video
•
Biology, Science
•
7th - 10th Grade
•
Hard

Ethan Morris
FREE Resource
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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 determine the evolutionary relationships among organisms
To identify unknown organisms
To measure the size of organisms
To classify organisms into taxonomic groups
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is recommended for creating a cladogram when dealing with a large number of species and traits?
Manual method
Using a statistical software
Drawing by hand
Using a microscope
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the example provided, which characteristic is shared by all four organisms: fish, rabbit, horse, and cow?
Having horns
Being ruminant
Having a backbone
Breathing with lungs
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key feature of a dichotomous key?
It uses complex scientific terms
It requires laboratory equipment
It uses pairs of contrasting statements
It provides a single statement for each step
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a step in creating a dichotomous key?
Using simple and clear language
Using contrasting statements
Including internal anatomical features
Numbering each couplet
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should be avoided when writing statements in a dichotomous key?
Using short sentences
Using common terms
Using overlapping ranges
Using specific measurements
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the dichotomous key example, which class does a frog belong to?
Aves
Amphibia
Reptilia
Mammalia
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