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35 Cards in this Set
- Front
- Back
- 3rd side (hint)
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name 6 features of Phylum Chordata
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notochord - stiff structure
endostyle - pharynx groove pharyngeal gill slits postanal tail hollow dorsal nerve cord metameric segmentation - muscles |
NEPPHM
think "fetus" |
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what are somites?
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segmented blocks of muscles
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So, Muscle Mites?
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what three subphyla are Chordata?
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Urochordata (nonvertebra)
Cephalochordata (nonvertebra) Vertebrata |
UCV
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What animals are in Urochordata?
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Tunicates - marine filter feeders, sea squirts (cellulose tunic)
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Ur cell tunic squirts
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What animals are in Cephalochordata?
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Lanceletes
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what is the different between adult and larvae sea squirts?
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adults lose tail and notochord
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what is diff between notochord of Urochordates and Cephalochordates?
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Urochordates lose it in adulthood
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Ur lose it
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What are 5 features of Vertebrata?
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Endoskeleton
Cranium Vertebral Column Neural crest on vertebrae Internal organs |
Think Human
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which were the first vertebrates?
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jawless fishes
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what animals evolved from jawless fishes?
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amphibians
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what animals replaced amphibians on land?
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reptiles
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what animals evolved from reptiles?
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birds and mammals
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what are the 7 features of fishies?
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vertebral columns
paired appendages jaws internal gills single-loop circulation nutritional deficiencies ectotherms |
think of a fish + SLC+nutri+cold
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what group of fishies are in Superclass Agnatha?
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Myxini - hagfishes
Cephalaspidomorphi - lampreys |
My lamp
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What fishies are in Chondrichthyes?
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Sharks - cartilaginous
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CHOmp!
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What is the lateral line in fishies?
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series of sensory organs under skin that detect changes in pressure waves
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what is the diff between Classes Actinopterygii and Sarcopterygii?
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Actin - 90% of fishes
Sarco - 7 species Actin fins - bony rays, no muscles Sarco fins - muscular lobe |
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which class gave rise to amphibians?
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Sarcopterygii
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amphisarc
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what is the swim bladder of fishes?
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a buoyant device
gas intake - gas gland gas release - oval body |
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what is the operculum?
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hard plate that covers gills
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List 5 common features in Amphibians.
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Legs
Lungs Cutaneous resp. Pulmonary veins Partially-divided heart |
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What 5 things did Amphibians need to do to move to land?
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Develop legs
Develop lungs Redesign heart Production of eggs in H2O Prevent body dryout |
LLHEB
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What are 3 features common to all Reptiles?
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amniotic eggs
dry skin thoracic breathing |
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what are the 4 membranes of amniotic eggs?
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amnion - fluid-filled cavity
yolk sac - feeds fetus allantois - excretes waste chorion - allows oxygen entry |
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what is anapsid?
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a skull with no holes behind eye
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what is synapsid?
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a skull with a large hole behind the eye, lateral
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what is diapsid?
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a skull with 2 holes behind eye, lateral and dorsal
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which skull type is most reptiles?
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diapsid
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what 2 things make reptiles different from amphibians?
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internal fertilization (sperm) and improved circulation
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what 2 features are common to Class Aves?
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feather
flight skeleton |
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what 3 features make Class Aves different from Class Reptilia?
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efficient circulation
efficient respiration endothermic |
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what 5 features make Mammals different from other vertebrates?
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Hair
mammary glands breathe air viviparous endothermic |
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What is the diff between Class Protoheria and Class Theria?
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Prototheria - lay eggs, monotremes (platypus)
Theria - viviparous (marsupials) |
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How did primates evolve?
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anthropoids that stayed in Africa developed apes and humans (no tail). Those in South America developed tails.
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Which primate is most closely related to humans?
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chimps
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