Chondrichthyes Study guides, Class notes & Summaries
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![SDSU Oceanography 100 FINAL Questions With Correct Solutions, Already Passed!!](/docpics/5091750/6628d31216f24_5091750_121_171.jpeg)
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SDSU Oceanography 100 FINAL Questions With Correct Solutions, Already Passed!!
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What is the origin of the Earth? - Answer-Formed out of a solar nebula 
What are the origins of Life? - Answer-Archaea - the oldest origin of life on Earth 
What is kinetic energy? - Answer-The energy of motion 
What is heat energy? - Answer-Energy created by particles of matter rubbing together 
What is density? - Answer-A measurement of the amount of matter in a given volume of something. 
(mass per unit volume) 
What is convection? - Answer-Transfer of heat through currents caused by differen...
![FRESHWATER ORGANISMS QUIZ REVIEW Chondrichthyes ANSWER = sharks and rays Gills ANSWER = organs that exchange oxygen and carbon dioxide with water in fish amphibian fertilization ANSWER = external, in moist areas Aves ANSWER = class of birds Ostechthyes AN](/docpics/3893319/6560180e89c2e_3893319_121_171.jpeg)
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FRESHWATER ORGANISMS QUIZ REVIEW Chondrichthyes ANSWER = sharks and rays Gills ANSWER = organs that exchange oxygen and carbon dioxide with water in fish amphibian fertilization ANSWER = external, in moist areas Aves ANSWER = class of birds Ostechthyes AN
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FRESHWATER ORGANISMS QUIZ 
REVIEW 
Chondrichthyes 
ANSWER = sharks and rays 
Gills 
ANSWER = organs that exchange oxygen and carbon dioxide with water in fish 
amphibian fertilization 
ANSWER = external, in moist areas 
Aves 
ANSWER = class of birds 
Ostechthyes 
ANSWER = bony fish, have a swim bladder for buoyancy 
Ectothermic animals 
ANSWER = body temperature is affected by the environment. 
Anura 
ANSWER = frogs and toads 
Urodela 
ANSWER = salamanders and newts 
Dinosaurs 
ANSWER = birds ar...
![ZOOL 403 EXAM LAB REVIEW SOLUTION 2022-2023 CARTILAGINOUS FISHES (CHONDRICHTHYES) University of Calgary](/docpics/638154e87c4e7_2133918.jpg)
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ZOOL 403 EXAM LAB REVIEW SOLUTION 2022-2023 CARTILAGINOUS FISHES (CHONDRICHTHYES) University of Calgary
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ZOOL 403 EXAM LAB REVIEW SOLUTION 2022-2023 CARTILAGINOUS FISHES (CHONDRICHTHYES) University of Calgary 
 
Chondrichthyes : 
 
1.	cartilaginous skeleton- Prismatic calcified cartilage 
2.	pelvic claspers (penises) 
3.	open gill slits (uncovered) 
4.	placoid scales (next slides) 
 
Skeleton: Prismatic calcified cartilage (WEB: cartilage that is mineralised, not as solid sheets, but as tiny prisms) Tesserae (T) of a portion of a gill arch. Tesserae at the top are oriented in lateral view; those...
![AQUACULTURE TEST BANK WITH QUESTIONS AND ANSWERS 2024](/docpics/4274375/65aa98e18e330_4274375_121_171.jpeg)
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AQUACULTURE TEST BANK WITH QUESTIONS AND ANSWERS 2024
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The _____ of a fish removes oxygen from the water and forces it through its gills - ANS - Respiratory System 
_______ conveys sensation impulses to a fish's brain. - ANS - Nervous System 
________ breaks down the food a fish consumes. - ANS - Digestive System 
The ________ consists of intestines and kidneys and it filters waste from the blood. - ANS - Excretory System 
The _______ is a lateral line for balance. - ANS - Sensory System 
The _______ consists of testes, ovaries, produces sperm...
![BIO 242 Exam 3 Complete Questions & Answers!!](/docpics/4639047/65e1e602daacb_4639047_121_171.jpeg)
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BIO 242 Exam 3 Complete Questions & Answers!!
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Suppose you take a drug that blocks your ability to secrete certain compounds in urine. What structures are most likely to be affected? - ANSWER Convoluted tubules 
 
You consume a large number of antacids due tooo acid upset; you are mimicking the actions of the ____ that also produces bicarbonates. - ANSWER Stomach 
 
Mammals belong to the subphylum - ANSWER Craniata 
 
Which of the following is not one of the main features which characterize ALL Chordates from other taxa? - ANSWER Ventral Ner...
![Praxis 5005 – Science Latest Update with Certified Solutions](/docpics/3656398/6531a0a0dc0c6_3656398_121_171.jpeg)
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Praxis 5005 – Science Latest Update with Certified Solutions
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Praxis 5005 – Science Latest Update with Certified Solutions 
Thick Layer surrounding Earth's outer core made of a thick, solid, rocky substance that represents about 85% of the total weight and mass of the Earth Mantle 
The most inside layer of the Earth, composed of iron Inner Core 
Closet to the Inner Core, liquid composed of a nickel-iron alloy Outer Core 
The most outside layer of the Earth, composed of a great variety of igneous, metamorphic, and sedimentary rocks Crust 
The two gasses ...
![Life in the sea Exam 4 Questions & Answers 2024/2025](/docpics/5239347/663c58257ce7a_5239347_121_171.jpeg)
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Life in the sea Exam 4 Questions & Answers 2024/2025
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Life in the sea Exam 4 Questions & Answers 2024/2025 
 
 
Benthic - ANSWERSlives on the bottom 
 
Pelagic - ANSWERSSwims in the water column. 
 
Tunicate larvae or lancelet - ANSWERSFish probaly evolved by 
 
vertebral column - ANSWERSseries of bones that make up the backbone 
 
Myomeres - ANSWERSseries of muscle segments along the trunk 
 
Agnatha - ANSWERSjawless fishes (hagfish and lampreys) 
 
Lampreys - ANSWERSparasites 
 
Hagfishes - ANSWERSbenthic scavengers, eat dead and dying 
 
Anadrom...
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Ocean 100 Final - SDSU Graded A Q&A Complete
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Euphotic zone - Answer-first 200 meters 
-where photosynthesis can take place 
-suns radiation can be absorbed 
Seed Plants - Answer--true plants 
-not very abundant 
-grasses, eelgrass and surfgrass 
-mangroves 
-like warm, muddy waters 
-have a root system 
Protists - Answer-a) large algae(seaweed) 
-brown algae(kelp), green (sponge weed), red (rhodophyta) 
b) phytoplankton(small algae) 
-most producers 
-diatoms 
-coccolithophores 
-dinoflagellates 
Eukaryotes - Answer-seed plants and protist...
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Life 103 Final Exam CSU (exam 1-3) Graded A Q&A Complete
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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...
![Vertebrate Zoology- Exam 1; Ch 1-4, 6 & 7 |339 questions| with correct answers](/docpics/63fd5995dd409_2419432.jpg)
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Vertebrate Zoology- Exam 1; Ch 1-4, 6 & 7 |339 questions| with correct answers
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Why doesn't phylogenetic systematics have a fixed number of hierarchical categories like Linnaean systematics? CORRECT ANSWER it is variable, not for sure 
 
What aspect of evolution does phylogenetic systematics represent more clearly than Linnaean systematics does? CORRECT ANSWER Evolutionary history 
 
Non-amniotes CORRECT ANSWER lay eggs in water 
 
Hagfishes and lampreys: CORRECT ANSWER Myxiniformes and Petromyzontiformes (Agnathans) 
 
Sharks, rays, and ratfishes, cartilaginous fishes: CO...
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