Considering the Age of the Various Segments of an Annelid

question 39

Multiple Choice

Considering the age of the various segments of an annelid such as an earthworm,

• A)they are born with all segments present and these merely grow in size;this allows segment count to be a major feature in their identification.
• B)new segments are added just behind the prostomium,so the oldest segments are at the posterior end.
• C)new segments are added just in front of the pygidium,so the oldest segments are at the anterior end.
• D)each segment doubles several times in life so all of the segments are half or one-fourth "new" at any one time.
• E)segments grow and duplicate in a haphazard fashion preventing their use in identification.

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Definitions:

Parietal Lobe

Part of the brain located at the upper back area in the skull that processes sensory information such as touch, taste, and temperature.

Ventral Stream

Part of the visual system that processes object identification and recognition, running through the temporal lobe.

Dorsal Stream

A pathway in the brain that processes visual information related to motion and spatial awareness, connecting the occipital and parietal lobes.

Object Identification

Object identification is a process in human and machine perception that involves recognizing and naming specific objects within the visual field based on shapes, patterns, and colors.