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- 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?
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- 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?Sponges are also found in freshwater, though not as numerous as the marine varieties. One example of this group is Spongilla, which can grow in many different morphs. Spongilla and other freshwater sponges have developed specialized reproductive cells known as gemmules, allowing them to survive harsh environmental conditions. Why are most Spongilla green?Most sponge body plans are slight variations on a simple tube-within-a-tube design. Which of the following is a key limitation of sponge body plans? Sponges lack the specialized cell types needed to produce more complex body plans The reliance on osmosis/diffusion requires a design that maximizes the surface area to volume ratio of the sponge Choanocytes must be protected from the hostile exterior environment Spongin cannot support heavy bodies.
- Please match the term with the description. the anterior end of a tapeworm that attaches to the inside lining of its host's digestive tract [ Choose ] [Choose] medusa describes the number of tissue layers in polyp coelom Cnidarians cnidocytes monoecious the cells that move water through a sponge gastrovascular cavity acoelom pharynx the cells that produce nematocysts scolex gonozooid osculum pseudocoelom triploblastic choanocytes diploblastic spongocoel water leaves a sponge through this opening proglottid spicule ventral sucker an incomplete digestive tract a planarian uses this to suck up food particles [ Choose ] a fluke uses this to hang onto its host's [ Choose ] tissues > > >Is 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 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?
- What structure in the Entamoeba histolytica is sometimes called a "false foot" and has a similar function to the musculoskeletal system of humans because it helps the amoeba move through its environment? Pseudopod Contractile Vacuole Cell Membrane NucleusWhich of the following is FALSE regarding lamellipodia? their formation is stimulated by extracellular signals their formation requires motor protein activity they extend at the leading edge of crawling cells their formation requires activity of actin-binding proteins they contain branched networks of actin filamentsDiscuss the structures of the following organisms when viewed under the microscope: Scolex of a tapeworm Ova and uterus in a gravid proglottid of a tapeworm Flukes
- The Order Squamata consists of 3 sub orders. Why are these Suborders so different - give at least 2 distinctive characteristics for each.Compare and contrast the body coverings of a free-living turbellarian, a monogenaen fluke, a cestode, and a nematode. Which problems does each solve or create? Be sure to consider locomotion, permeability, ciliation, and habitat, and to think of the entire life cycle.Which of the following structures would be found in the mesohyl of a sponge? amoebocytes and choanocytes amoebocytes and spicules spicules and choạnocytes amoebocytes and polyps