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Lab 11 Animal Diversity III Quiz
1. (1pt) List two structures are on the oral surface of a sea star?
The mouth and tube feet are both found on the oral surface of a sea star.
2. (1pt) List 3 functions of an Echinoderms water vascular system.
The water vascular system of Echinoderms functions or movement, feeding, and gas
exchange.
3. (2 pts) List the four characteristics that all chordates have during their development.
• A notochord is a flexible rod between digestive tube and nerve cord.
• They have a dorsal (back) hollow nerve cord.
• Pharyngeal clefts are grooves along pharynx. These develops into gills in fish,
ears and other parts in land chordates.
• They have a muscular post anal tail.
4. (1pt) To which phylum do sea squirts belong?
Sea squirts belong to the phylum Chordata.
5. (1pt) How do fish hears differ from bird hearts?
Fish have two chambered hearts, while birds have four chambered hearts.
6. (1 pt) How do bird lungs differ from mammal lungs?
Bird lungs are different from mammal lungs in that they have air sacs posterior and
anterior to the lungs. These air sacs allow all the air to be exchanged during two
inhalations and exhalations. Because all of the air is exchanged this allows birds to
have a higher maximum P02 . This helps them perform better at high elevations.
7. (1pt) What group of fish does the perch belong to? What is the defining characteristic of that group? (In this case it is OK to use that defining characteristic in the
name of the fish group.)
Perch belong to the ray finned fishes (Actinopterygii). The defining characteristic
of this group is that they have boney rays that support their pectoral fins.
8. (1pt) Birds are most closely related to which organism:
(a) perch
(b) crocodiles
(c) bats
(d) lung fish
Birds are most closely related to crocodiles.
9. (1pt) List 2 functions of the liver.
The liver is important for detoxification, protein synthesis, and production of biochemicals necessary for digestion (bile production).