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Why is radial symmetry uncommon for land animals?

Answer 1

Eli Ayoub

Land animals can only be bilateral and have distinct appendages.

Moreover, the animal's symmetry is impacted by the internal organ placement.

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Answer 2

Gabriella Anderson

Radial symmetry is uncommon for land animals because it is not conducive to efficient movement in terrestrial environments. Bilateral symmetry provides better mobility and allows for more complex behaviors, such as directed movement and predator evasion. Additionally, bilateral symmetry allows for the development of specialized sensory organs and appendages, which are essential for survival on land.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.