Bio 322 Exam 3 -Questions with Correct Answers/ Verified/ Latest Update
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Course
Bio 322
Institution
Bio 322
Levels of Animal Organization - kingdom, phylum, class, order, family, genus, species
Taxonomy - science of classification
Systematics - study of the diversity of life and the evolutionary relationships between
organisms
Example of Taxonomy (Spider) - Kingdom- Animalia
Phylum- Arthropoda
Clas...
Bio 322 Exam 3 -Questions with Cor rect Answers/ Verified/ Latest Update Levels of Animal Organization - ✔✔kingdom, phylum, class, order, family, genus, species Taxonomy - ✔✔science of classification Systematics - ✔✔study of the diversity of life and the evolutionary relationships between organisms Example of Taxonomy (Spider) - ✔✔Kingdom - Animalia Phylum - Arthropoda Class - Arachnida Order - Araneae Family - Araneidae Genus - Argiope Species - argentata Common name for spider - ✔✔Golden orb -web weaver Families always end with... - ✔✔"dae" Order always ends with... - ✔✔"eae" Cellular Level - ✔✔-everything composed in one cell Tissue Level - ✔✔-groups of similar cells that have a common function Organ Level - ✔✔-contains two or more types of tissues Cellular Level Example - ✔✔-protozoans -phylum Porifera (sponges) Tissue Level Example - ✔✔-phylum Cnidaria (sea anemones, jellyfish) Organ Level Example - ✔✔-phylum Platyhelminthes (flatworms, planaria) 3 Levels of Symmetry - ✔✔1) No Symmetry (asymmetrical) 2) Circular Symmetry (pie -shape) 3) Bilateral Symmetry (symmetrical) No Symmetry Example - ✔✔Sponge Radial Symmetry Example - ✔✔Coral polyp Bilateral Symmetry Example - ✔✔Platyhelminthes Which org anism was the first to exhibit bilateral symmetry? - ✔✔Planaria (phylum Platyhelminthes) What level of organization is phylum Porifera? - ✔✔cellular What level of symmetry is phylum Porifera? - ✔✔no symmetry (asymmetrical) Totipotent - ✔✔cells can chang e shape and function Choanocytes - ✔✔flagellated collar cells, generate a water current through the sponge and ingest suspended food Sessile - ✔✔An organism that does not move. It remains attached to one place Adult sponges are... - ✔✔sessile Mesohyl - ✔✔a gelatinous region between the two layers of cells of a sponge Spicules - ✔✔small, spike shaped particles of calcium carbonate or silicon dioxide that make up the skeleton of some sponges What are household sponges typically composed of? - ✔✔spongin Spongin - ✔✔Collagen -like material that make up the skeleton of some sponges. Amphiblastula - ✔✔Free -swimming larval stage of sponge How do sponges feed? - ✔✔-as water enters the sponge through pores, food is collected and water comes out of osculum -food sticks to choanocyte cell or is collected on the mucus -producing outer collar -food is distributed through phagocytosis Osculum - ✔✔A large opening on a sponge through which filtered water is expelled Amoebocytes - ✔✔Found in sponges, these cells are mobile and perform numerous functions, including reproduction, transport of food particles to nonfeeding cells, and secretion of material that forms the spicules Amoebocytes are... - ✔✔totipotent Where are choanocytes found? - ✔✔in the lining of the spon gocoel Spicules help in describing the ______ of a sponge - ✔✔species
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