prostomium造句

• Its peristomium is small and short, covering the posterior prostomium margin.
• Its peristomium shows a dorsal fold partly covering the prostomium.
• The head, or prostomium, is relatively well developed, compared with other annelids.
• The prostomium generally has a proboscis, from which the genus has got its name.
• The prostomium has two short frontal antennae, two globular palps and five main antennae.
• Its prostomium has cirri, with simple supraacicular chaetae and compound subacicular chaetae with serrated blades.
• The prostomium bears eyes, two pairs of antennae and a pair of large retractile nuchal organs.
• Its peristomium measures the same as its succeeding segments, covering the posterior half of the prostomium.
• Its proventricle is similar in length to the prostomium, spanning 3 segments, with about 18 muscle cell rows.
• Prostomium rectangular shaped with two lateral horns making it appear as a " T . peristomium " without chaetae.
• It carries two ciliated nuchal organs between its prostomium and peristomium, the latter being similar in length to the adjacent segments.
• Some species of earthworm can even use the prehensile prostomium to grab and drag items such as grasses and leaves into their burrow.
• Its peristomium measures the same as its succeeding segments, and is bilobed, forming two anterior wings that cover the prostomium dorsally.
• The prostomium and peristomium can be variously fused, either completely distinct, or comprising a joint structure of a peristomial ring and a tentacular crown.
• The first segment, or prostomium, of oligochaetes is usually a smooth lobe or cone without sensory organs, although it is sometimes extended to form a tentacle.
• The head consists of a Prostomium ( part of the mouth ) and a peristomium ( area around the mouth ) and carries paired appendages ( palps, antennae and cirri ).
• The consists of a prostomium ( a section for the mouth opening ) and a peristomium ( section around the mouth ) and has paired appendages ( palps, cirri and antennae ).
• The head consists of a prostomium ( part of the mouth's opening ) and a peristomium ( area around the mouth ) and utilized paired appendages ( palps, antennae and cirri ).
• The suborder name " Symphyta " derives from the Greek word " symphyton ", meaning " grown together ", referring to the group's distinctive lack of a wasp waist between prostomium and peristomium.
• The mouth of polychaetes is located on the peristomium, the segment behind the prostomium, and varies in form depending on their diets, since the group includes predators, herbivores, filter feeders, scavengers, and parasites.