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Differentiate the following according to their anatomical characteristics. Give at least five differentiation.
a) Actinopterygii and Sarcopterygii
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- Differentiate the following according to their anatomical characteristics. Give at least five differentiation. a) Agnatha and GnathostomataThe cells that pull the archenteron through the blastocoel in the sea urchin are _____ cells called mesenchyme Group of answer choices A. mesoderm B. endoderm C. meroblastic D. macrolecithalWhich of the following does not occur? a. radially symmetrical diploblast b. diploblastic eucoelomate c. protostomic coelomate d. bilaterally symmetrical deuterostome
- Cnidocytes are found in phylum Porifera phylum Nemertea phylum Nematoda phylum CnidariaClass 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)?View this time-lapse movie(http://openstaxcollege.org/l/conceptus) of a conceptusstarting at day 3. What is the first structure you see? Atwhat point in the movie does the blastocoel first appear?What event occurs at the end of the movie?
- All of the following are common characters of Meandrina and Ctenoplana except a.Presence of two germ layers in their developing embryos b.Presence of cnidoblasts in their tentacles c.Presence of radial symmetry d.Both have extracellular and intracellular digestion1. Define the following a. Operculum b. Spine c. Gynecophoral groove d. Sucker 2. Differentiate between the adult Schistosomes and the Fasciolas?How can the presence, localization and function of muscular tissue in beings of the phylum Annelida be explained?
- Ascaris Describe the functions of the Ascaris. If someone were to examine the Ascari (dissected) what would he/she see, some stuff that they would see would be mouth, pharynx, intestine, anus, ovary, oviduct, uterus, vagina, and the two pores. So my question is what do these structures do for the Ascaris? What are the similarities and differences between Ascaris, earthworm, and the clam? Also, how is the body plan of Ascaris adaptive in view of its parasitic mode of life?What is the distinguishing characteristic of each stage in the embryonic development of the sea urchin? Embryonic Stage Distinguishing characteristic 1. zygote 2. morula 3. blastula 4. gastrula 5. pluteusFor each of the following classes of Arthropods, identify a feature unique to the class and at least 2 organisms that belong to the class: Insecta Crustacea Chelicerata Diplopoda 2. State the function of the following parts of the genus Romalea (grasshopper): antenna, tympanum, spiracles, ovipositor (female), gastric caeca, malphigian tubules, tracheae, air sacs .
