Term
| four characteristics of chordates |
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Definition
| notochord, hollow dorsal nerve cord, pharynx with gill slits, post-anal tail |
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Term
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Definition
| stiffening structure, flexible but incompressible rod of tissue |
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Definition
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Definition
| thickened line of cells on dorsal side of embryo, forms dorsal nerve cord |
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Definition
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Definition
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Term
Which of the following is not true of tunicates?
A. have 2 phases- larvae and adults
B. the adults have all 4 chordate characteristics
C. the adults are sessile
D. the adults have a cellulose tunic
E. two of the above |
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Definition
| B. the larvae have all 4 chordate characteristics, adults do not have a notochord, nerve chord or tail |
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Term
Which of the following is not a characteristic of all vertebrates?
A. tail
B. skeleton
C. ventral nerve cord
D. coelom
E. well defined cephalization |
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Definition
| C. it is a dorsal nerve cord |
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Term
Which of the following is not present in all vertebrates?
A. endocrine glands
B. liver
C. kidney
D. jaws
E. 4 chambered heart |
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Definition
| E. heart may be 2, 3, or 4 chambered |
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Term
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Definition
-maintain osmotic regulation
-remove wastes- nitrogenous, sodium, etc |
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Term
Which of the following is present in the vertebrates?
A. malphigian tubules
B. hemocoel
C. endocrine glands
D. nerve net
E. 2 of the above |
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Definition
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Term
| Function of endocrine glands? |
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Definition
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Term
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Definition
-produces bile to break up fat,
-regulates sugar amounts in body (form glycogen)
-detoxify |
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Term
Which of the following is not true of vertebrates?
A. have kidneys for osmotic balance
B. have endoskeleton with bone and cartilage
C. have a central and peripheral nervous system
D. have a cylindrical body with anterior and posterior ends
E. all of the above |
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Definition
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Term
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Definition
| vertebral skeleton and skull |
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Term
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Definition
| appendages- attached to axial by girdles |
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Term
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Definition
| female animal (reptile, amphibian, fish) filled with eggs |
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Term
Which of the following is true of vertebrates?
A. lampreys have jaws
B. birds have a 4 chambered heart
C. sharks have a bony skeleton
D. amniotic eggs allow development in water
E. tetrapods have fins |
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Definition
B
lampreys don't have jaws, sharks have cartilaginous skeleton, amniotic eggs allow for development on land, tetrapods have limbs |
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Term
| What are the 2 big groups of vertebrates? |
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Definition
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