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Define the following : Bilateral symme...

Define the following :
Bilateral symmetry.

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**Step-by-Step Text Solution:** 1. **Definition of Bilateral Symmetry**: Bilateral symmetry refers to a type of symmetry in which an organism can be divided into two identical halves along a single plane. This means that one side of the organism is a mirror image of the other side. 2. **Cutting the Organism**: To visualize bilateral symmetry, imagine cutting an organism down the middle (from top to bottom) in one specific plane. If the two halves are equal and match each other perfectly, then the organism exhibits bilateral symmetry. 3. **Examples of Bilateral Symmetry**: A common example of bilateral symmetry is found in humans. If you were to draw a line down the center of a human body, the left side would be a mirror image of the right side, demonstrating bilateral symmetry. ...
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Knowledge Check

  • Which of the following animal is radially symmetrical but has a bilaterally symmetrical larva.

    A
    Ascaris (Round worm)
    B
    Nereis (Ring worm)
    C
    Pila (Apple snail)
    D
    Asterias (Star fish)

  • Animals having radial symmetry in the adult and bilateral symmetry in the larva are

    A
    Hemichordates
    B
    Mollusks
    C
    Echinoderms
    D
    Cephalochordates.

  • Larva of which phylum showing bilateral symmetry but adult are radial symmetry ?

    A
    Crinoidea
    B
    Asteroidea
    C
    Ophioroidea
    D
    Echinoderma

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    Identify my class/phylum and give one example of it. We form the highest number of animals on the planet. We have bilateral symmetry and our exoskeleton is in the form of chitin.

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