Spicules - Study guides, Class notes & Summaries

Best method to determine geographical origin? - elemental analysis (ie. finding stable isotopes in teeth or bone) Best methods to find ethnocultural identity: - • Facial similarity (maybe) • Dental morphology (maybe) • Contextual information: belongings & personal effects (if available) Can you assess sex in non-adult remains? - Only with DNA Characteristics of blunt force trauma on cranial vault: - • Localized depressed (bending) fractures • Radiating fractures • Concentric ...

Phylum Arthropoda (specifics) ~ - tagmosis: fusion of metameric body plan into functional units - growth by molding termed ecdysis - functional cilia absent (except sperm in some) - cuticle forms a rigid exoskeleton Class Hexapoda (specifics) ~ - ph. Arthropoda, sub uniramia - specialized mouth parts - metamorphosis — hemimetabllous dvlpmt - eggs > nymphs > adults - juvenile resembles adults - ie crickets, grasshoppers — homometabolous - eggs > larvae > pupa ...

3rd degree burn (layer of skin affected) - epi and all of dermis/ nerve endings destroyed Compare and contrast an artery vs a vein. - artery - blood away from heart - oxygenated - thicker tunica media - smaller lumen vein - blood toward heart - deoxygenated - larger lumen - valves _________ means to provide nerve fibers to/from an organ or tissue. - Innervate 1st degree burn (layer of skin affected, appearance, healing time) - outer layer of epi/ red, swollen, pain/ 3-10 days to hea...

TAMU Biology 112 Lab Practical 2 Exam Questions and Answers 100% Pass Phylum Porifera - Answer- No true tissues Asymmetrical symmetry Taxa: -Silicea (glass sponges) -Calcarea (rest of sponges) Osculum - Answer- Water exit in sponges Spicules - Answer- -Skeletal components of sponges made of silica, calcite or spongin -Produced by amoebocytes Choanocytes - Answer- Spong's filter-feeding cells Phylum Cnidaria - Answer- Diploblastic Radially symmetrical Cnidocytes Classes: -Anthozoa...

Biology 1402 Questions and Answers Already Passed What is a feature of Animals, but is not seen outside of the animal kingdom? They have collagen in their extracellular matrix. Phylogenies based on morphology and phylogenies based on molecular data disagree on which one of the following issues? whether the appearance and type of coelom is important in interpreting phylogeny A horshoe-shaped crown of tentacles used by many invertebrates for feeding is called a lophophore Which ...

asconoid sponges - ANSWER-have a simple vase-like structure with a single osculum, limited in size because an increase in volume without a corresponding increase in surface area of choanocytes ( make up majority of sponges) syconoid sponge - ANSWER-Tubular body and a single osculum, the choanocyte layer is folded back and forth to make canals leuconoid sponges - ANSWER-more complex design, no real atrium, several small flagellated chambers instead in which choanocytes are, most adaptive an...

Biology 172 UH MANOA Exam 2 Latest Version Already Passed Animal qualities 1. 2. 3. 4. ? (Multicellular eukaryotes, heterotrophs, cells lack cell walls, bodies held together by structural proteins-collagen) What is Collagen? 1. 2. 3. 4. (Most abundant protein in animal bodies, flexible, high tensile strength and elastic resistance) Skin vs Ligament vs Tendon arrangement of collagen? 1skin- dense irregular. 2. Ligament- sheets. 3. Tendon- cable-like Germ layers give rise to 1 2?...

Phylum Porifera - name classes (taxonomy) - ANSWER-Demospongia, Calcarea, Hexactinellida, (Homoscleromorpha) Key characteristics (overall): Life cycle/reproduction - ANSWER--monoecious - asexual (by budding / gemmules) - sexual (eggs / sperm) free-swimming flagellated larvae Key characteristics (overall): Anatomy - ANSWER--asconoid (basic) : -Syconoid -lueconoid (complex) Key characteristics (overall): Basic Body plan - ANSWER-- Tissue: no true tissue (incipient) - symmetry: none - gu...

TAMU Biology 112 Lab Practical 2 Exam Questions and Answers 100% Pass Phylum Porifera - Answer- No true tissues Asymmetrical symmetry Taxa: -Silicea (glass sponges) -Calcarea (rest of sponges) Osculum - Answer- Water exit in sponges Spicules - Answer- -Skeletal components of sponges made of silica, calcite or spongin -Produced by amoebocytes Choanocytes - Answer- Spong's filter-feeding cells Phylum Cnidaria - Answer- Diploblastic Radially symmetrical Cnidocytes Classes: -Anthozoa...

Hydrostatic skeletal systems mevhanical advantage for cylindrical hydrostats Wall tension for internally pressurized containers Importance of collagenous connective tissue Pliable skeletons time-dependent properties (mesoglea) Stiffening gel matrices with spicules Hydrostatic skeletons criteria fluid maintained at constant volume Container for fluid must be deformable Container for fluid is wrapped in muscle and connective tissue Fluid in a deformable container that is wrapped in muscle transm...