17.
Several examples of how scientists use symmetry to identify and group animals in
categori...
17.
Several examples of how scientists use symmetry to identify and group animals in
categories and to study evolutionary relationships are shown in the table.
Type of Symmetry
asymmetry
radial
Description
no distinct body plan
identical structures arranged in a circle
structures divided equally on left and right sides
Examples
sponges
corals
mammals
bilateral
Based on the table, which inference about the relationship between symmetry and
evolution is most accurate?
A
Organisms with different types of symmetry are more closely related than organisms with the same
symmetry
B.
Organisms with the same type of symmetry may be more closely related than organisms with different
symmetries.
C.
Organisms with radial symmetry evolved into organisms that are either asymmetrical or that exhibit bilateral
symmetry.
D.
Organisms with bilateral symmetry evolved into organisms that are either asymmetrical or that exhibit radial
symmetry
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