Majors animal: External anatomy of a grasshopper (matching)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Compound eyes | Paired, complex, image-forming photoreceptors composed of numerous ommatidia that create a fairly coarse-grained picture of their visual field
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| Ocellus | Simple photoreceptor consisting of a small cup backed by light-absorbing pigments; not capable of image formation
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| Antennae | Thin, paired appendages on head modified for chemosensory and tactile reception
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| Mouthparts | Multiple sets of hard, chininous appendages used to chew food and manipulate food into the mouth
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| Wings | Two sets of paired appendages modified for flight
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| Tympanum | Circular, pressure-sensitive membrane on each side of the thorax that detects sound waves; functions as an "ear drum"
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| Spiracles | External openings in abdomen that allow air flow into and out of tracheae
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| Ovipositor | External reproductive opening bordered by tiny, chininous teeth that penetrate the soil and create burrows for egg deposition
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