Practicum 3 Flashcards
1
Q
Deuterstome Animals
A
- 3 Phyla
- Triploblastic
- Eucoelomates
- Radial Cleavage
2
Q
3 Phyla of Deuterstomes
A
- Echinodermata
- Hemichordata
- Chordata
3
Q
Phylum Echinodermata Characteristics
A
- “spiny-skinned”
- secondary radial symmetry
- oral and aboral surfaces
- pentamerous
- CaCO3 exoskeleton
- water vascular system
- complete tubular digestive system
- dioecious, not sexually dimorphic
- nervous system
4
Q
Echinodermata Symmetry
A
- larvae: bilateral
- adult: radial
5
Q
Echinodermata Nervous System
A
- nerve ring
- nerve net
- radial nerves
6
Q
Echinodermata Water Vascular System
A
- can be used for movement
7
Q
Echinodermata Classes
A
- Astroidea
- Ophiuredia
- Holothuroidea
- Echinoidea
- Crinoidea
- Concentricycloidea
8
Q
Echinodermata Examples
A
- sea cucumber
- sea lilly
- feather star
- sea urchins
- brittle star
- sea daisy
9
Q
Class Astroidea
A
- classic sea stars
- central disk with radiating arms
- maderporite on aboral surface
- regenerative properties; rays
- pyloric caecum; pancreatic and digestive like
10
Q
Maderporite
A
- draws and expels water for the water vascular system
11
Q
Class Ophiuredia
A
- brittle star
- basket star
- maderporite on oral surface
- no intestine
12
Q
Class Holothuroidea
A
- sea cucumber
- five rows of tube feet
- evisceration
13
Q
Class Echinoidea
A
- sea urchins
- sea biscuits
- sand dollars
- lack arms but are pentamerous
14
Q
Class Crinoidea
A
- sea lilies
- sea feathers
- resembles upside-down starfish with oral surface up
- sessile as adults
15
Q
Class Concentricycloidea
A
- sea daisy
- new class
- discovered in 1990
16
Q
Phylum Hemichordata
A
- gill slits like chordates
- most common is the acorn worms
- mucus covered body consisting of a proboscis, a collar and a trunk
17
Q
Phylum Chordata Characteristics
A
- contains notochord at some point in life span
- bilateral
- triploblastic
- complete digestive system with regional specialization
- ventral contractile blood vessel or heart
18
Q
Chordata Examples
A
- sea squirts
- birds
- mammals
- ect.
19
Q
Chordata Primary Characteristics
A
- Notochord
- Dorsal, hollow nerve cord
- Pharyngeal slits
- Post-anal tail
20
Q
Chordata Subphyla
A
- Urochordata
- Cephalochordata
- Vertebrata (Clade Craniata)
21
Q
Subphyla Urochordata
A
- sea squirts
- invertebrates
- sessile as adults
- filter feeding adults
- larvae stage has notochord and are motile
22
Q
Subphyla Cephalochordata
A
- lancelets
- small fish looking animals without fish looking gills
23
Q
Subphyla Vertebrata
A
- vertebral column replaces notochord
- presence of cranium
- 7 classes
24
Q
Classes of Vertebrata
A
- Superclass Agnatha
- Gnathasomes (Clade)
- Class Osteichthyes
25
Clade Gnathosomes
- Class Chondrichthyes
26
Superclass Agnatha
- jawless fish
- hagfish
- lamprey
27
Class Chondrichthyes
- cartilaginous fish
| - sharks
28
Class Osteichthyes
- bony fish
- perch
- tetrapods
29
Clade Tetrapods
- class amphibia
| - amniotes (clade)
30
Clade Amniotes
- class reptile
| - endotherms (clade)
31
Clade Endotherms
- class aves
| - class mammalia
