Homework Answers
D . Lacks true tissue
Sponges are the mylticellular and are similar to other animals in
producing sperm cells. But unlike the animals, sponges have no true
tissue or organs. They are considered to be radially symmetrical
and also they can generate lost bodyparts by themselves.
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Which of the following traits are associated with Sponges (Porifera)? A. Water vascular system for movement...
QUESTION 5 Which of the following traits are associated with Echinoderms? O A. Water vascular system...
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QUESTION 5 Which of the following traits are associated with Echinoderms? O A. Water vascular system for movement B. Cells with stinging structures (nematocytes) Dorsoventrally flattened; no digestive tract Lacks true tissues Segmented body wall and internal organs OC. OD. E. QUESTION 41 While swimming in the ocean, you notice a floating organism with a radial body plan that caught a fish in its tentacles. You probably are looking at OA A flatworm OB. An octopus O C. The medusa...
Match each animal phylum with its description. Muscular foot, veliger larva, and most species have a calcium carbonate shell [Choose ] > Jointed appendages and chitinous exoskeleton [Choose) Hollow, porous body and no true tissues [Choose] [Choose] Worms round in cross-section and tapered at ends Phylum Chordata Flattened body, no coelom Phylum Brachiopoda Phylum Echinodermata Notochord, pharyngeal slits, postanal tail Phylum Tardigrada Phylum Porifera Eight rows of cilia; may have sticky tentacles Phylum Ectoprocta Phylum Platyhelminthes Body divided into segments...
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2s Antigen-Antibody interactons ooour in which of the foliowing ways? A Opsonization BNecation A D. Complement Fixation EAl the above are cormect 26 Antigen binding sites of an anibody are locaed in the A. Light chains alone D. Fab regions of the antbody B Heavy chains sioneCF ion of the antbody E. Soft chains alone 27 Nonspecific chemical defenses include D stomach hydrochlorie acid A. lysozyme E. All of the choices are corredt Blacic acid and electrolytes of sweat Cskins...
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding amino acids together using dehydration synthesis. b) Before cells divide both strands must be copied and one is provided for each new cell cm RNA is copied from a piece of DNA termed a gene. d) DNA is not always copied perfectly. Mistakes, mutations, occur and result in changed proteins, e) DNA functions as code for the synthesis of proteins. 43. A section of...
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