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Describe the process of nuerological development of a member of phylum Cnidaria. (I.e, how is their nervous system formed?)
Some examples from this Phyum are hydras, jellyfish, and sea anemones.
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- Cnidocytes are found in _____. a. phylum Porifera b. phylum Nemertea c. phylum Nematoda d. phylum CnidanaWhat are the checkpoints in the completion of the life cycle of nematomorphs? Would it be easier if all their host is aquatic? Why or why not? Note: This is about Likely Nematode Relatives (invertebrates zoology)Make a table showing the similarities and differences of the 4 phyla in terms of the different organ systems of the organisms (Nematomorpha, Priapula, Kinorhyncha, and Loricifera).
- do any nematodes have similar adaptations due to their needs being met by their hosts? I know that nematodes are parasitic and not mutually beneficial, but they are still symbionts and perhaps have evolved to no longer require some components of basic anatomy in result of their needs being met by their host. please cite sourcesIdentify and label the parts of the following specimens of Phylum Nematoda:The defining feature of the cnidarians is that they all have nematocytes (cnidocytes). These cells; Are nerve cells that allow the cnidarians to sense the environment Are cells lining the gastrovascular cavity Are filter feeding cells on the tentacles Are stinging cells on the tentacles
- Compare and contrast the Phyla Porifera and Cnidaria. Think: Symmetry, Form and function, Tissue layers (present or absent, if present which are represented), Musculature/how they move, Reproduction, Nervous system and sensory structures, Respiration, Digestion (and how they feed), and comment on unique cell types found in each.Although nematode worms and arthropods do not appear related, they, in fact, are. One similarity between these two groups of organisms is/are; They both have a hydrostatic skeleton They both molt They both have a segmented body plan They both have a ventral nerve cord and nerve gangliaClass Cephalopoda is unique among the classes in Phylum Mollusca in that (they undergo direct development/ they have an open circulatory system/ they have a closed circulatory system)?
- Describe the feeding process of a sponge. Make sure to use the following vocabulary in your answer: spongocoel, choanocytes, phagocytosis. What are some possible functions of spicules and spongin? How are these sponge parts alike and different? Why is sexual reproduction beneficial for sponges (or other organisms)? When could asexual reproduction be beneficial?Briefly describe the distinguishing morphological features of each of the following: eurypterids, horseshoe crabs, pycnogonids.What type of symmetry is seen in the roundworm? Does it exhibit cephalization? Ascaris is a parasite that swims constantly in human intestines. What structure protects the nematode from being digested? View the Trichinella slide. Trichinella is also a parasite. It can infect humans as well as other mammals like pigs, bears, and rodents. If untreated, it can lead to death.What mammal tissue does this roundworm infect?Draw a picture below of the Trichinella as viewed under the microscope. Although not mentioned on the website, if available view the live vinegar eel specimens. If there are no live specimens available, check out this you tube video instead: https://www.youtube.com/watch?v=UnjwvtFvyeQDescribe the movement of the vinegar eels.Do they have a complete or incomplete digestive system?