Porifera Study guides, Class notes & Summaries

Bio 120 - Exam 1 Questions with Correct Answers Graded A+ Synapomorphy A shared derived character or trait state that distinguishes a clade from the other organisms. Analagous Having characteristics that are similar because of convergent evolution, not homology. Homologous Similarity in characteristics resulting from a shared ancestry. Porifera Sponges No true tissues Mostly marine, aquatic Asymmetric 2 germ layers (endoderm and ectoderm) No coelom Sessile Sessile Attached direc...

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 EXAM #3 Questions and Answers 100% Pass Select the TRUE statement about animal development: A.) Deuterostome development is indeterminate. B.) Mesoderm in protostomes arises as outpocketings of the primitive gut. C.) Radial cleavage is characteristic of protostome development. D) In deuterostomes, the blastopore ultimately becomes the mouth of the adult. E) All of the above are true. - Answer- Deuterostome development is indeterminate. During embryogenesis of diploblasti...

Phylogeny - Answer-Classification of organisms according to evolutionary relationships. Taxonomy - Answer-Evolutionary classification Linnaean system of classification (taxonomy) - Answer-Domain> Kingdom> Phylum> Class> Order> Family> Genus> Species (Did King Phillip Come Over For Grandma's Soup) [ex. Homo sapien](italicized) Phylogeny relationships - Answer-Basal Group: Branch from oldest common ancestor, no other branch from species. Sister Taxa: Share common ance...

Principles of Biology (Biol 198) Exam Questions And Answers (Updated And Verified) _____ is a type of connective tissue and _____ is a type of epithelial tissue. - answerBone; lining of the digestive tract What is the top side of a vertebrate and other bilateral organisms? - answerDorsal side What is the bottom side of a vertebrate and other bilateral organisms? - answerVentral side Germ layer on the outside layer of the body. Forms skin and nervous system (nerves). - answerEctoderm The...

Biology Lab 1106 Baylor University Exam 3 QUESTIONS AND VERIFIED ANSWERS 2023. 1. Phylum Porifera (sponges): asymmetrical lack true tissues have unique cells called CHOANOCYTES (flagellated cells that will draw in water and filter food particles) Genus: Grantia, Spongia, Euplectella 2. Phylum Porifera Genus Grantia: isolated spicules walls of sponges contain amoebocytes and crystallized structures called spicules incurrent canals and flagellated canals 3. Phylum Porifera Genus Spon...

Phylogeny - Classification of organisms according to evolutionary relationships. Taxonomy - Evolutionary classification Linnaean system of classification (taxonomy) - Domain> Kingdom> Phylum> Class> Order> Family> Genus> Species (Did King Phillip Come Over For Grandma's Soup) [ex. Homo sapien](italicized) Phylogeny relationships - Basal Group: Branch from oldest common ancestor, no other branch from species. Sister Taxa: Share common ancestor Homologies - Comparing...

invertebrates - ANSWER-animals that lack a backbone and account for over 95% of known animal species blue dragon (Glaucus atlanticus) - ANSWER-an invertebrate animal true or false: expect for sponges (and a few others), all animals are Eumetazoans - ANSWER-true animal phylum - ANSWER-1. Porifera 2. Cnidaria 3. Ctenophora 4. Platyhelminthes 5. Nematoda 6. Annelida 7. Mollusca 8. Arthropoda 9. Echinodermata 10. Chordata filter feed (sponges) - ANSWER-filter out food particles suspen...

Bio 120 - Exam 1 Questions with Correct Answers Graded A+ Synapomorphy A shared derived character or trait state that distinguishes a clade from the other organisms. Analagous Having characteristics that are similar because of convergent evolution, not homology. Homologous Similarity in characteristics resulting from a shared ancestry. Porifera Sponges No true tissues Mostly marine, aquatic Asymmetric 2 germ layers (endoderm and ectoderm) No coelom Sessile

BIO 151 Lab Exam #1 questions and answers Porifera - answer-sponges Cnidaria - answer-jellyfish, corals, sea anemones Platyhelminthes - answer-flatworms, tapeworms, flukes Annelida - answer-Segmented worms, earthworms; anus and mouth; closed circulatory system; nervous system; setae-bristle appendages Mollusca - answer-(snails, clams, squids, octopuses) have a soft body that in many species is protected by a hard shell Arthopoda - answer-Insects: bilaterally symmetric; exoskeleton; segm...