Answer the following statements true (T) or false (F)
1. There are no parasitic crustaceans.
2. Each arm of the starfish differs internally, one being specialized for reproduction, another for respiration, a third for digestion, a fourth for the water vascular system, and the fifth for the nervous and circulatory systems.
3. Autotomy is the ability of an animal to lose a body part and subsequently regenerate it.
4. Echinoderms have an exoskeleton.
1. FALSE
2. FALSE
3. TRUE
4. FALSE
You might also like to view...
Four of the five answers listed below are generalizations of the cell theory. Select the exception
a. Cells are the structural and functional components of living things. b. Cells arise from preexisting cells. c. All organisms are composed of cells. d. Cells are the basic living unit or organization of living things. e. All cells have a nucleus.
Cardiac muscle cells have ____ that connect cytoplasm of adjacent cells
a. sarcomeres b. a pericardium c. tight junctions d. gap junctions e. desmosomes
The primitive protoprokaryote likely acquired motility before it lost the cell wall.
a. true b. false
If you place the corner of a paper towel into a droplet of water the water moves across the paper towel. Which of the following would explain the movement of the water?
A. surface tension B. cohesion C. adhesion D. both cohesion and adhesion