Lecture Exam 2 Form B Correct answers are marked with an asterisk and may appear BLUE in your browser. Echinoderms have a hydraulic system of locomotion called the water vascular system. Echinoderm larvae have bilateral symmetry, even though many adult echinoderms are pentaradial.
Echinoderms are deuterostomes.
Pentaradial adult echinoderms provide a good example of a cephalized animal. Think of the skeleton of a bony fish. The skeleton of the tail of a pig is formed from a. cervical vertebrae. In fertilized Drosophila melanogaster eggs, the location of bicoid protein determines the site of the future a. thorax. Blood is an example of a. epithelial tissue.