Answers2627 EARTH SPACE SCIENCE ASpheres of Earth

Evolutionary Relationships Answers

6 verified answers
1
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Why are molecular clocks important in the construction of cladograms?

A
They compare the frequency of reproduction to determine which traits evolved through mutations.
B
They compare the genes inherited by a species to determine descendants.
C
They compare the number of mutations to determine how long ago species separated and evolved.
2
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For each statement, select the correct type of classification from the drop-down menu.✔ LinnaeanCladistics classification is based on the similar appearance of species.Linnaean✔ Cladistics is based on evolutionary relationships.

A
✔ Linnaean
B
Cladistics
3

Identify the parts of a cladogram using the drop-down menus.X Node✔ Clade Label A

A
X Node
B
✔ Clade
4

✔ Node X Clade Label B

A
✔ Node
B
X Clade
5

According to the cladogram, which group of organisms is the closest relative to chordates?

Answer:

echinoderms

6

Which of the following explains your answer?

A
Echinoderms and chordates are found on the same node.
B
Echinoderms and chordates are the same species.
C
Echinoderms and chordates are found on the same clade.

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