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- What structures are found in Acanthocephalans which allows them to perform its endoparasitic life? ExplainWith respect to nematode reproduction and reproductive structures, which of the following statements are true? (multiple answers) a) parasitic species have smaller eggs than free-living nematodes b) nematodes have amoeboid sperm c) parasites produce more eggs/day/female worm than free-living species d) ovoviviparous species produce eggs that hatch within the uterus, such that larvae are released from females Cuhmit CuizDescribe 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?
- What is the type of reproduction that occurs in roundworms? What typical feature do nematode sperm cells have?Contrast asexual reproduction in triclad turbellarians, Trematoda, and Cestoda.Nematocysts are reproductive cells found in the members of phylum cnidaria True or false Immature proglottids of taenia solium have… Uterus but no ovaries and testis Ovaries but no testis Testis but no ovaries Vitelline follicles and shell gland but no gonads Current paleontological and molecular data points out Anthozoa as the most primitive class under cnidaria True or false
- The male copulatory organ of turbellarians is called aReproduction is usually sexual with both male and female sexes, however asexual reproduction does exist with several unique adaptations. a) Discuss comprehensively the types of parthenogenesis and give an example of insect of each type. b) Enumerate and briefly explain four major factors that influence the ability of the female to produce eggs and the number that are ovipositedWhat 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?
- Both Porifera and Placozoa possess epithelial tissues. True False Asexual and sexual reproduction are characteristic of both Porifera and Cnidaria. True FalseIs reproduction in sponges sexual or asexual? What is the evolutionary advantage of the occurrence of sperm cells and larval stage in the life cycle of sponges.What is the role of the cuticle in the successful propagation of nematodes?