Zoology – Sea Star Lab
Name
Hour
Refer to the procedure for Exercise 25 in the lab book, beginning on page 333.
A. Class Asteroidea: Sea Stars
2. The pedicellaria grasp objects that land on the surface of the body. For what might these be an adaptation?
Prelab Questions – Fill in the correct answer using the multiple choices given on page 340
1.
The deuterostomes are animals whose
2.
The skin gills of sea stars are organs
3.
The tube feet of a sea star
4.
Aristotle’s lantern is a tooth-bearing structure of the
5.
The madreporite, stone canal, circular canal, and radial canals of a sea star are structures of the
6.
The endoskeleton of echinoderms is made of
7.
Which of the following is not a major diagnostic feature of the chordates?
8.
The tunicates and lancelets have an inner chamber from which water is expelled. This chamber is called the
9.
Invertebrates
10.
Which one of the following animals is a chordate?
Postlab Questions
1.
Compare and contrast echinoderms and arthropods
2.
List the structures that comprise the water-vascular system of a sea star
3.
Describe the various functions of the tube feet
4,
Identify the structures from the photo given
a.
6.
b.
c.
List the three major characteristics of chordates and tell how these are exhibited in adult tunicates and lancelets