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_______ are thought to have been present before vertebrates.

2 Answers

3 votes

Answer:

invertebrates i guess

Step-by-step explanation:

hope it helped!!!

User Jake Griffin
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5 votes

1.) Chordates

2.) phylogeny

3.) most recent common ancestor

4.) derived

5.) homologous

6.) analogous

7.) opposable

8.) prehensile tails

9.) Lucy

10.) neanderthalensis

11.) Using comparative anatomy, scientists identify similarities and differences in the anatomy of different species. Scientists would search for homologous structures, analogous structures, and vestigial structures to provide clues as they construct a cladogram.

PF

User JoeCondron
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3.9k points