REVIEW 8-R2P

REVIEW 8-R2P - INVERTEBRATE DIVERSITY II-EXERCISE 8 REVIEW...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: INVERTEBRATE DIVERSITY II-EXERCISE 8 REVIEW SHEET THIS CLASS: Three dissected specimens: clam, earthworm and squid External anatomy of three specimens: crayfish, grasshopper and spider Two Slides: cross section of an earthworm, snail radula GENERAL QUESTIONS-What are the characteristics of a protostome? Deuterostome? PROTOSTOME DEUTEROSTOME # OF GERM LAYERS DIPLOBASTIC (2) TRIPLOBLASTIC (3) COELOME TYPE SCHIZOCOELOUS ENTEROCOELOUS CLEAVAGE TYPE SPIRAL RADIAL TYPE OF DEVELOPMENT DETERMINATE INDETERMINATE FATE OF BLASTOPORE MOUTH ANUS-Which organisms that we studied are protostomes? Deuterostomes? Protostomes: Mollusca, Arthropoda, Annelida-What is spiral cleavage? Radial cleavage? Spiral- 8 celled embryo; cells form a spiral Radial- the daughter cells align above each other-What is a blastopore? What does it become in a protostome? Deuterostome? Blastopore-opening to the developing gut cavity of the gastrula Protostome-becomes a mouth Deuterostome-becomes an anus -What is indeterminate cleavage? Determinate cleavage? Determinate-fate of the embryonic cell is committed to a specific product Indeterminate-fate of embryonic cell is not fixed to a specific product-What is schizocoelous development? Enterocoelous development? Schizocoelous-splitting of embryonic mesoderm Enterocoelous- mesoderm out pocketing of the primitive gut-Which organisms that we studied in this lab are triploblastic? Diploblastic? Mollusca, Arthropoda, Annelida--->triploblastic Porifera and Cnidaria---> Diploblastic -What type of symmetry do the organisms that we studied in class have? Bilateral Symmetry- have a left a right side -All of the organisms that we are studying in the second half of the semester (exercises 7-13) belong to which domain? Which kingdom? Domain: Eukarya Kingdom: Animalia -Which organisms that we looked at in class are monoecious? Dioecious? Hermaphroditic? Most are dioecious; Annelida & Porifera: Hermaphroditic -What type of locomotion do the organisms that we looked at in class possess? (sessile?) NOT sessile Annelida: Parasites Mollusca: Jet-propulsion Arthropoda-legs (?)-What type of feeding do the organisms that we looked at in class utilize? (filter feeders? Use tentacles? Etc.) Annelida: use ciliated tentacles/Filter feeders? --- Mollusca: Filter feeders and scavengersAnnelida: use ciliated tentacles/Filter feeders?...
View Full Document

This note was uploaded on 08/31/2009 for the course BIOL 112 taught by Professor Vaughn during the Spring '08 term at Texas A&M.

Page1 / 5

REVIEW 8-R2P - INVERTEBRATE DIVERSITY II-EXERCISE 8 REVIEW...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online