WebLeeches Leeches have 34 segments, and elongation occurs by the subdivision of these segments. Leeches have a small sucker at the anterior end and a large sucker at the posterior end. A clitellum is present in the mid-region during the reproductive period. The poorly developed eyes are paired structures at the anterior end. Setae are absent. WebA pair of nephridia is present on each segment of the earthworm. They are similar to flame cells in that they have a tubule with cilia. Excretion occurs through a pore called the nephridiopore. They are more evolved than the flame cells in that they have a system for tubular reabsorption by a capillary network before excretion. Figure 2.
Leech vs Earthworm: What
WebCorrect option is D) Leech and Nereis belong to phylum Annelida, have a closed blood vascular system and metamerically segmented body. Scolopendra, Prawn, and Scorpion belong to phylum Arthropoda. They also show metamerism but possess open blood vascular system. Solve any question of Animal Kingdom with:- Patterns of problems > WebA leech has a relatively small and fixed number (30-35) of body segments, although its body has a large number of superficial groove like markings giving it the appearance of more extensive segmentation. With the exception of one small group, setae are absent. Eyes are usually present, but there are no sensory appendages or para-podia. phoenix contact plug in terminal block
Lab 7: Annelids and Smaller Ecdysozoans - UW-La Crosse
WebJan 24, 2024 · Nereis: 1. The systematic position of Nereis is – Kingdom: Animalia Phylum: Annelida Class: Polychaeta Order: Phyllodocida Family: Nereididae Genus: Nereis 2. They are commonly known as clam worms or sandworms. 3. They are marine nocturnal and carnivorous animals. 4. They are found in the burrows on tidal areas of the seashore. 5. WebEarthworms are big segmented worms that belong to the Phylum Annelida, Class Clitellata, and sub class Oligochaeta. Leeches are also worms belonging to Phylum Annelida, Class … WebLeeches often use a looping or "inch worm" style of movement when they are approaching a suitable host. The animals have muscular bodies. A human neuron (or nerve cell) showing the dendrites, cell body, and axon; the axon may be much longer than shown BruceBlaus, via Wikimedia Commons, CC BY 3.0 License Nervous System and Senses phoenix contact project complete download