Zoology Exam 4 Comprehensive ACTUAL UPDATED Questions and CORRECT
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Terms in this set (149)
Superphylum that includes echinoderms and chordates Deuterostomia
Embryonic development pattern of deuterostomes Blastopore develops into the anus first
Phylum that includes vertebrates Chordata
Basic body plan of chordates Bilateral symmetry
, Number of germ layers in chordates Three (triploblastic)
Body cavity type of chordates Eucoelomate
Digestive system of vertebrates Complete digestive tract
Excretory system of vertebrates Kidneys remove metabolic waste
Circulatory system of vertebrates Closed circulatory system with a heart
Nervous system of vertebrates Brain with central nervous system
Respiratory systems used by vertebrates Gills, lungs, or skin depending on species
Largest group of chordates Subphylum Vertebrata (Craniata)
Two chordate groups that are not vertebrates Cephalochordata and Urochordata
Common name of Cephalochordata Lancelets
Common name of Urochordata Tunicates
Five defining characteristics of chordates Notochord, dorsal hollow nerve cord, pharyngeal slits, post-anal tail,
endostyle/thyroid gland
When chordate characteristics may appear During embryonic development in some species
Notochord definition Flexible supportive rod derived from mesoderm
Location of notochord Dorsal to digestive tract and ventral to nerve cord
Function of notochord Provides structural support and muscle attachment
What replaces the notochord in vertebrates Vertebral column
Hollow dorsal nerve cord definition Ectoderm-derived tube that becomes CNS
Location of dorsal nerve cord Dorsal to the notochord
What the dorsal nerve cord develops into Brain and spinal cord
Typical nerve cord location in most invertebrates Ventral side
Pharyngeal slit function in early chordates Filter feeding
Function of pharyngeal slits in fish Gill support and water exit
Answers
Terms in this set (149)
Superphylum that includes echinoderms and chordates Deuterostomia
Embryonic development pattern of deuterostomes Blastopore develops into the anus first
Phylum that includes vertebrates Chordata
Basic body plan of chordates Bilateral symmetry
, Number of germ layers in chordates Three (triploblastic)
Body cavity type of chordates Eucoelomate
Digestive system of vertebrates Complete digestive tract
Excretory system of vertebrates Kidneys remove metabolic waste
Circulatory system of vertebrates Closed circulatory system with a heart
Nervous system of vertebrates Brain with central nervous system
Respiratory systems used by vertebrates Gills, lungs, or skin depending on species
Largest group of chordates Subphylum Vertebrata (Craniata)
Two chordate groups that are not vertebrates Cephalochordata and Urochordata
Common name of Cephalochordata Lancelets
Common name of Urochordata Tunicates
Five defining characteristics of chordates Notochord, dorsal hollow nerve cord, pharyngeal slits, post-anal tail,
endostyle/thyroid gland
When chordate characteristics may appear During embryonic development in some species
Notochord definition Flexible supportive rod derived from mesoderm
Location of notochord Dorsal to digestive tract and ventral to nerve cord
Function of notochord Provides structural support and muscle attachment
What replaces the notochord in vertebrates Vertebral column
Hollow dorsal nerve cord definition Ectoderm-derived tube that becomes CNS
Location of dorsal nerve cord Dorsal to the notochord
What the dorsal nerve cord develops into Brain and spinal cord
Typical nerve cord location in most invertebrates Ventral side
Pharyngeal slit function in early chordates Filter feeding
Function of pharyngeal slits in fish Gill support and water exit
