Answers for the entire assignment for e2020! This will help future people in order to get a excellent grade! :) Determine whether each statement below describes traditional or modern classification.

(Answers)

Traditional Classification is based on similar appearance

Modern Classification is based on evolutionary relationships

Modern Classification is known as Cladistics

Traditional Classification is known as Linnaean classification

Which piece of information provided the stimulus for the shift from traditional classification to modern classification?

An understanding that species share a common ancestor

Fill in the blank below with the vocabulary word that best completes the sentence.

Using a clock, scientists are able to estimate the amount of time that two species have been evolving independently.

molecular

How does the molecular clock work?

It compares the number of mutations that exist in the DNA of two different species.

Select the correct word from the drop-down menu to complete the sentences.

are branching diagrams that depict the evolutionary relationship among species.

Cladograms

is a point in a cladogram where a single ancestral lineage breaks into two or more descendant lineages.

is a group of organisms that includes an ancestor and all of its descendants.

is any named group of organisms, whether they form a clade or not.

Answer(s):

Node

Clade

Taxa

According to the cladogram, which of the following is the derived characteristic shared by amphibians and reptiles?

Lungs

After much research and DNA analysis it has been determined that species in the same clade are actually more distantly related than originally thought. What is one way that the cladogram may change because of this information?

A node would be introduced

According to the cladogram, which species are MOST closely related?

D and E

Use the cladogram about fish to answer the following questions.

Which of the following best describes the organism located at point B?

Has jaw, but no bones

The organism at location D is the to organisms at location A, B, and C.

Ancestor

According to the cladogram, arthropods are MOST closely related to which group of organisms?

annelids