Lab: Using a Dichotomous Key

Question 1

Why is taxonomy important?

Revolt · Accepted Answer

B: Taxonomy allows a better understanding of relationships among species.

Question 2

Why are some of Carl Linnaeus’s classifications of organisms incorrect?

Revolt · Accepted Answer

D: Linnaeus primarily used physical characteristics.

Question 3

Why is it important to classify the millions of species on Earth?

Question 4

Which type of evidence is least likely to result in changes to a phylogenetic tree?

Revolt · Accepted Answer

D: physical characteristics

Question 5

Which is most likely to change with new discoveries and technologies?

Revolt · Accepted Answer

A: classification of organisms

Question 6

Which evidence did Carl Linnaeus use to classify organisms?

Question 7

Which identifies the main purpose of biological taxonomy?

Revolt · Accepted Answer

C: use a systematic method to name, organize, and show relationships among species

Question 8

The species that is known as a robin in England has a yellow breast, and another species that is known as a robin in the United States has a red breast. Which statement about common names does this fact best exemplify?

Revolt · Accepted Answer

B: Common names differ among various locations.

Question 9

Which is the best definition of a phylogenetic tree?

Revolt · Accepted Answer

C: a branching chart that depicts evolutionary relationships among organisms

Question 10

Which scientific area has the most influence in shaping modern classification methods?

Revolt · Accepted Answer

C: evolution

Lab: Using a Dichotomous Key Answers

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