BIOLOGICAL CLASSIFICATION
KINGDOM ANIMALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1 line that divides a shape into 2 equal parts
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1 line that divides a shape into distinct right and left halves that are mirror images
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shape that can be divided into mirror images using any of several lines
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a shape that cannot be divided into mirror images
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Detailed explanation-1: -Bilateral symmetry involves the division of the animal through a sagittal plane, resulting in two mirror-image, right and left halves, such as those of a butterfly, crab, or human body.
Detailed explanation-2: -When the body plan of an animal can be divided along a line that separates the animal’s body into right and left halves that are nearly identical of each other, it is said to have bilateral symmetry.
Detailed explanation-3: -Symmetry is a very formal type of balance consisting of a mirroring of portions of an image. Bilateral symmetry, that is, two-sided symmetry, is the most common, in which two halves of a work of art mirror each other, as in Perugino’s painting, Christ Giving the Keys of the Kingdom to St. Peter.
Detailed explanation-4: -A huge number of living beings are bilaterally symmetrical, i.e., they can be easily segmented into mirror image (right and left) halves even by just one plane passing through the body’s midline. This plane extends from its head or the body’s anterior to its tail or the body’s posterior.
Detailed explanation-5: -Examples of animals that possess bilateral symmetry are: flatworms, common worms ("ribbon worms"), clams, snails, octopuses, crustaceans, insects, spiders, brachiopods, sea stars, sea urchins, and vertebrates.