0
Except for the first and last segments, which have no setae, there are eight tiny bristle-like structures that can not be seen with the naked eye called setae on each segment of an earthworm. The arrangement of the setae is one factor that helps in the identification of earthworms, as they can be closely or widely paired in four pairs or separate. Setae grip the soil to help the earthworm move about and sense the enviroment.
Wiki User
∙ 9y ago
Wiki User
∙ 13y agoTotal number of segments: 110-180
Seata per segment : 8
Except in the first two segments which builds the "head"
And the final 1 segment with anus have NO SEATAS.
Wiki User
∙ 9y agoThe number of setae that earthworms have are 8 per segment. Most earth worms will have between 110 to 180 segments.
Wiki User
∙ 15y agoThere are 6 segments in the Clitellum. Segments 32-37.
Wiki User
∙ 12y agoThere are about 30 segments between the prostomium and clitellum of an earthworm.
Wiki User
∙ 14y agoAn earthworm has two nephridia in nearly every segment.
Wiki User
∙ 10y agoThere are 8 setae on each segment of an earthworm.
Wiki User
∙ 13y agoAround 14 to 16 segments
Wiki User
∙ 12y agotwo on each
Wiki User
∙ 13y ago5
Add your answer:
Earn +20 pts
What is a small circular segment of DNA found in many bacteria but separate from the bacterial chomosome?
The small circular segment of DNA is called plasmid.
How are nutrients transported from the blood of an earthworm to the muscle cells of its body wall?
through aortic arches that function as many small hearts
How many amino acids are produced by the segment of DNA that has 21 bases?
21
During replication which sequence of nucleotides would pair with the DNA segment ttacgc?
You have one too many bases.
How many allele do you get from each parent?
23 from each parent
How many pores are there in each segment of an earthworm?
2
How many parapodia are found per segment in earthworm?
Earthworms do not have parapodia.
How many setaes on one earth worms segment?
they have 4 of them on each segment
How many endpoints does a segment have-?
Just the two of them at each end of the line segment.
What are the two specific points of a line segment?
Any line segment has infinitely many points and each one of them is specific to that line segment.
Who many eyes does an earthworm have?
An earthworm has 5 eyes, that your answer!!!
How do you describe segmentation in earthworms?
The earthworm is a segmented worm with a true coelom which is partitioned into separate segments. There are many internal structures that are repeated within each segment. Each segment is surrounded by both longitudinal and circular muscles allowing earthworms coordinated movement. The fluid filled coelom acts as a hydrostatic skeleton. Each body segment contains four pairs of chaetae, bristles that provide traction for movement. Also the first four segments make up the anterior head region of the external structure of earthworms. The first segment is the periostomium which bears the mouth and the anus is found in the last posterior segment. My reference is my Biology 191 laboratory manual on invertebrates. (pg's 77-78)
How many setae are on a worm?
The earthworms has 4 seate's on each segment.
How many legs per body section do millipedes have?
Millipedes have two pairs of legs per body segment.
Earthworm B is how many centimeters longer than Earthworm A?
It is seven (7) centimeters.
How many times does each line segment in a polygon intersect?
I want to say 2, once at each corner
How many times can the line segment of a polygon cross each other?
Zero times.
