Brooks Biodiversity Exam 4 With Complete solutions 100% Verified
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Ontogeny Recapitulates Phylogeny - answerIf early development stages of most animals are
compared, there are significant similarities especially among the more closely related animals
Phylum Annelida - answer"Little Rings" - anima...
brooks biodiversity exam 4 with complete solutions
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Brooks Biodiversity Exam 4 With Complete solutions 100% Verified Ontogeny Recapitulates Phy logeny - answer✔✔If early development stages of most animals are compared, there are significant similarities especially among the more closely related animals Phylum Annelida - answer✔✔"Little Rings" - animals made up of rings Vermiform Homonomous Metamer ism Setae Parapodia Complete Digestive System Closed Circulation (5 Hearts) Metanephridia Coelom Trocophore Larvae **Most expansive coelom**** Metamerism - answer✔✔Segmentation Metameres (segments) contain similar organ systems Homonymous Metamerism - answer✔✔Segments that look the same Heteronomous Metamerism - answer✔✔Segments that look different Setae - answer✔✔Otherwise known as Chaetae Made of chitin Hair-like sticky projections used for movement Parapodia - answer✔✔Like fee t that are on the side of the organism that the setae are attached to Phylum Annelida Circulation - answer✔✔They have a closed circulation They have multiple hearts (5 in total) Blood with hemoglobin (involved in trapping and storing oxygen) Metanephridia - answer✔✔Kidney One in each segment in Annelids Phylum Annelida Movement - answer✔✔Crawling and Swimming They move in a circular and longitudinal fashion unlike the solely longitudinal movement of the nematodes Longitudinal is the shortening They contract their sphincter muscle which makes them narrow This combination of narrowing and shortening allows them to move through their environment The same movement for land and water Trocophore Larvae - answer✔✔Both Annelids and Mollusks have trochophore larvae, which means that they may be closely related to one another, and this may be the link the annelids to the mollusks Class Polychaeta - answer✔✔"Many Setae" Well -developed head Pharynx that can be extended outwards with jaws made of chitin Parapodia Possess chitinous setae on the parapodia Ex: Sandworm, Tubeworm, Fireworm Phylum Annelida Tubeworm - answer✔✔Worms that build a tube and live in them They can close off their tube with their operculum Christmas Tree Worm Class Polychaeta Palalo Worm - answer✔✔Has segments filled with eggs Has a hemoglobin Physically look like tapeworms, but are not actually tapeworms The have "reproductive orgies" and people in 3rd world countries eat them They come together during their "spawning periods" and congregate together for mass spawning over several nights but no one knows how or why they do this Tubeworm Class Polychaeta Fireworms - answer✔✔They have setae that sting Class Polychaeta Class Oligochaeta - answer✔✔"Few Setae" Earthworms Terrestrial Some earthworms can reach 2 meters in length Poorly developed head and sensory structure Clittelum Respiration takes place via diffusion through this skin which is why it is moist Hermaphrodite/Monoecious Don't produce larvae No parapodia, few setae Crop and gizzard for decomposing material Phylum Annelida Class Hirudinea - answer✔✔"Leeches" Mainly Freshwater and Terrestrial Blood -Sucking Parasites Facilitated by anesthetic and anticoagulants Some are carnivorous Preserve their food Hemocoel/Hemolymph - open circulatory system Coelom filled with Mesenchyme (tissue) Generally lack parapodia, setae, and head appendages (don't need a head; makes it easier to latch on without one Clitellum present for reproduction Phylum Annelida Class Hi rudinea Anesthetic and Anticoagulants - answer✔✔These leeches have chemicals in their mouths and when they first latch on to their host they apply an anesthetic to numb the area and then they release anticoagulants so the blood doesn't clot Anticoagulant - Hyrudin Anticoagulant in Class Hirudina - answer✔✔Hyrudin 3 Classes of Phylum Annelida - answer✔✔1. Class Polychaeta 2. Class Oligochaeta 3. Class Hirudinea Phylum Arthropoda - answer✔✔Largest and most successful/diverse phylum They are found in nearly e very habitat General Features: Tagma (3): Head, Thorax, Abdomen Exoskeleton Excretory Systems - either malpighian tubules or green gland Respiratory System - Gill Lungs, Book Lungs, or Tracheae (tubes) with spiracles Open circulatory system Heart with Osti a (holes) and Hemocoel (blood/tissue interface - blood not in vessels most of the time) Molting for growth Compound Eye May or may not have antennae Most Common Circulatory System in the World? - answer✔✔Open Circulatory System Phylum Arthropoda Most Commo n Excretory System in the World? - answer✔✔Malpighian Tubules Phylum Arthropoda Most Common Type of Eye in the World? - answer✔✔Compound Eye Phylum Arthropoda Most Common Appendage in the World? - answer✔✔Uniramous
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