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Primitive eyes refer to simple visual structures found in early animals, often consisting of basic light-sensitive cells rather than complex lenses or retinas. These eyes can detect light and dark, helping organisms navigate their environment and respond to changes in light. Examples include the ocelli found in some invertebrates, which allow them to sense light but do not form detailed images. Such structures represent the evolutionary beginnings of more advanced visual systems in higher organisms.

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Related Questions

Can the box jellyfish see?

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The bumblebee has two compound eyes, composed of many individual hexagonal spaces called ommatidia, covered by a lens. Then between the two eyes, arranged in a triangular formation, are three ocelli, or primitive eyes.


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The comparative form of "primitive" is "more primitive."


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Primitive is spelled the way you spelled it: primitive.


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Living in a cave is primitive.


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Yes, primitive is an adjective.


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The most non-derived primitive primates are typically represented by the prosimians, which include lemurs, lorises, and tarsiers. Among these, lemurs, specifically those from Madagascar, are often considered some of the most primitive due to their unique evolutionary lineage and retained ancestral traits. Additionally, tarsiers exhibit primitive characteristics, such as large eyes and a reliance on nocturnal habits. Overall, these groups retain features that provide insights into the early stages of primate evolution.


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any belief in a god is primitive.


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the shirt was primitive for it was plain


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The prefix of the word "primitive" is "pre-."


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