Springtails are a type of arthropod. male springtails drop tiny beads of semen attached to stalks. females that are ready to reproduce search out these drops and take them into their genital opening. this is an example of

Spring tails are a type of arthropod that practices external fertilization. Males produce sperm packets (spermatophores) & glue them to the substrate on the end of little stalks, Females use their genital opening to gather spermatophores & then lay their eggs on little stalks inside a crevice or small cavity in the ground.

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a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.