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Bilateral Symmetry Examples Explained

The document discusses bilateral symmetry in objects like scissors, sunglasses, cars, lobsters, and bivalve mollusks. It explains that bilateral symmetry means an object can be divided into identical right and left halves that are mirror images. Examples are given of how different items exhibit bilateral symmetry in their structure and appearance.

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Bredget Quebada
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429 views3 pages

Bilateral Symmetry Examples Explained

The document discusses bilateral symmetry in objects like scissors, sunglasses, cars, lobsters, and bivalve mollusks. It explains that bilateral symmetry means an object can be divided into identical right and left halves that are mirror images. Examples are given of how different items exhibit bilateral symmetry in their structure and appearance.

Uploaded by

Bredget Quebada
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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Bilateral – Bilateral symmetry means that an object or picture may be divided into right and left

halves that are mirror images of each other by a line. If the image can be folded in half and the
sides match up, it is considered to be symmetrical.

Examples of Bilateral Symmetry:


Scissor - Scissors have bilateral symmetry because they may be split into two equal and mirror-
image parts along a central axis. The scissors are bilaterally symmetrical because each side is a
mirror of the other. This symmetry makes them efficient tools for cutting and ensures that they
work effectively regardless of their orientation.

Sunglasses - Sunglasses have bilateral symmetry because they reflect each other in terms of
design and shape. They mirror each other in terms of the appearance of the lenses, nose pads, and
other parts of a pair of sunglasses. This symmetry ensures that both sides of the sunglasses
provide equal eye protection and comfort to the wearer, increasing both their functionality and
attractiveness.
Car - A car exhibits bilateral symmetry based on its parts because each half mirrors the other in
terms of the arrangement of components and features. This symmetry is evident when elements
like the wheels, doors, headlights, and interior features are considered.

Lobster - A lobster has bilateral symmetry based on its body components and look because when
you draw an imaginary line through its center, the two halves on either side of the line are equal
in terms of structure and features. If the lobster's claws, antennae, legs, and segments are
compared on one side of its body to those on the other, you'll see that they're identical in size,
form, and arrangement.
Bivalve Mollusks – Bivalve Mollusks have a central axis of symmetry, as can be seen from their
general form and structure. Bivalve mollusks, like clams and mussels, display bilateral symmetry
primarily in their two-part, hinged shells, which are mirror images of each other when divided
along the central axis. This shell symmetry provides protection for their soft inner body and
facilitates their filter-feeding lifestyle. Additionally, their internal organs and structures are
organized in a way that reflects this bilateral symmetry, enabling efficient feeding and
movement.

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