Option (A) is bilaterally symmetrical is correct.
An organism that exhibits a head with sensory equipment and a brain probably also is bilaterally symmetrical.
What is mean by bilateral symmetry?
- Symmetry where the same anatomical components are positioned on either side of a median axis, allowing for only one plane to split the subject into two nearly identical halves.
- Including Chordates, Arthropods, Molluscs, and Annelids.
- They are able to move ahead in a straight line because they have bodies that are bilaterally symmetrical (the same on both sides along an axis).
- Animals who could go from point A to point B swiftly and effectively would have been more successful in evolutionary history and would have been selected for over those that couldn't.
- The "head" and "tail" (anterior vs. posterior), front and back (dorsal vs. ventral), and right and left sides are all present in animals with bilateral symmetry.
- All real animals are bilaterally symmetrical, with the exception of those possessing radial symmetry.
Learn more about symmetry here:
https://brainly.com/question/22840085
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