Which has a posterior flagellum that spits fluids that "burns" from its anal glands? A. Amblypygi B. Microwhip scorpions C. Pseudoscorpions D. Whip scoprions
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B. Microwhip scorpions
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- The earthworms are different than the leaches in that the earthworms move by; Using chetae to anchor themselves and then crawl using a whip like motion to propel themselves Using doral and ventral suckers to inchworm using small appendages called parapodiathis is a brachiostama, label the nerve cord, notochord, gill slits, pharynx, anus and atriopore use arrows pleaseWhich of the following characteristics is not seen in the phylum Platyhelminthes?a. cephalizationb. the presence of a mesodermc. specialization of the digestive tractd. bilateral symmetry
- The planula stage in Cnidarians is similar to what life stage in two other non-animal organisms? Explain how they are similar and why they are necessary. Please pay attention, it is talking about NON-animal organisms. Please talk about the stages ONLY.Which one of the following arthropods has biramous appendages? scorpion mite millipede lobster horseshoe crabWhat arthropod characteristics are likely to have contributed to their success on land? Choose all that apply O jointed legs dessication resistant egg O exoskeleton made of chitin Ocomplete digestive systems closed circulatory systems
- The labyrinth of the antennal (or maxillary) gland is used to: take up space and look ugly O provide surface area for the reabsorption of nitrogenous waste produces and carbon dixide capture food particles in mucus decrease the volume of water taken in by the gastric caeca increase intestinal volume for the uptake of polysaccharides and fats increase volume of the gill chamber for gas exchange O provide surface area for reabsorption of electrolytes and amino acidsWhich is not a characteristic feature of sea stars?a. coelomb. eyespotc. skin gillsd. tracheae. tube feetWhich of the following has indeterminate development? Echinodermata Nematoda Arthropoda Platyhelminthes
- Compare the whole specimens and cross-sections of Ascaris and Dugesia. How would you differentiate these worms? Also, nematodes have a complete gut whereas most platyhelminths have an incomplete one. Think of one advantage of having a complete gut.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 tentaclesWhich of these does not pertain to a protostome?a. spiral cleavageb. blastopore is associated with the anusc. coelom, splitting of mesodermd. annelids, arthropods, and molluscse. mouth is associated with first opening
