Bio 112 New Content For Final
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What is the phyla and an animal in the phyla if there is no true tissue
Phyla: Porifera Ex: sponge
What is the phyla and an animal in the phyla if there’s true tissue and radial symmetry
Phyla: cnidarian Ex: jellies, sea anemone Phyla: Ctenophora Ex: comb jellies
What is the clade if there’s not radial symmetry
Bilateria clade
What is the clade, phyla, and an animal in the phyla if there’s true tissue, no radial symmetry, is a protostome, and doesn’t do ecdysis?
Clade: Lophotrochozoa Phyla: platyhelminthes (tapeworm) Rotifer Ectoprocta (bryozoan) Brachiopoda (Lampshell) Mollusca (snail, clam, oyster, squid) Annelida (earthworm, leech)
What is the clade, phyla, and an animal in the phyla if there’s true tissue, no radial symmetry, is a protostome, and does do ecdysis (molts)?
Clade: Ecdysozoa Phyla: Nematodes (trichinella spiralis, wuchereria bancrofti) Arthropods (spider, millipede, lobster, grasshopper) Tardigrada (water bear)
How do you show brachiopoda are bilaterally symmetrical?
Cut down the middle (top to bottom)
How do you show mollusca are bilaterally symmetrical?
Cut from left to right
What are the groups of arthropods
Chelicerata Myriapoda Crustacean Hexapoda
What are common characteristics of all arthropods?
Segmented (2-3 parts) Exoskeleton (chitin) Jointed appendages Open circ. System Tracheal system
Characteristics of subphyla arthropoda, chelicerata
4 pairs walking legs No antennae
Characteristics of subphyla arthropoda, myriapoda
Many legs 1 pair of antenna
Characteristics of subphyla arthropoda, crustaceans
Aquatic Many legs 2 pairs of antenna
Characteristics of subphyla arthropoda, insects
Hexapods (3 pairs of legs) Body in 3 distinct (head, thorax, abdomen) 1 pair of antenna
What does this cell do in a sponge body: amoebocyte
Delivers nutrients to cell Can turn into other cells
What does this cell do in a sponge body: choanocyte
Generates water current Filters food particles from water
What supports the body of sponges
Calcium carbonate spicules Spongin (protein fibers; dish sponge)
Example of ectoproct
Bryozoan
Example of brachiopod and how do u cut it for bilateral symmetry
Lampshell (middle; top to bottom)
What unique features do platyhelminthes posses that previous animals don’t
Cephalization Protonephredia (start of kidney-prototype)
In tapeworms, what is the head and segments known as?
Head: scolex Segments: proglottids
What is an alimentary canal and what does it allow
A digestive tube with 2 openings (mouth and anus) Allows continuous eating
Major clades of mollusca
Gastropoda (snail & slug) Bilvalvia (clams & oyster) Cephalopoda (squid & octopuses)
3 main parts of mollusc body plan
Muscular foot Visceral mass Mantle
What animal causes trichinosis and what phyla does it belong to
Trichinella spiralis Ecdysozoans: nematoda