Name: Take-Home Assignment 1 Sec. #: 1. What is the significance of crayfish gills being attached to appendages on the abdomen of the organism? Does it exhibit any behaviors that utilize this phenomenon to the organism's advantage? (3 pts.) 2. What type of circulatory system is utilized by crayfish?(1 pt.) 3. What function do pedicellaria have on starfish? Without these present, what process would fail to occur? (2 pts.) 4. Why must starfishes be submerged in water in order for them to capture prey? (1pt.)
1. What is the significance of crayfish gills being attached to
appendages on the abdomen of the organism? Does it exhibit any
behaviors that utilize this phenomenon to the organism's advantage?
(3 pts.)
2. What type of circulatory system is utilized by crayfish?(1
pt.)
3. What function do pedicellaria have on starfish? Without these
present, what process would fail to occur? (2 pts.)
4. Why must starfishes be submerged in water in order for them
to capture prey? (1pt.)
5. What type of respiration do lancelets utilize? What does the
presence of gill slits suggest about the evolutionary lineage of
the organism? (3 pts.)
