The mucous sheet produced by the endostyle traps the microscopic food particles in the water. This sheet is located in the pharynx of what animal?
A. Lancelet
B. Arrow worm
C. Crinoid
D. Acorn worm
E. Tunicate
Answer: E
You might also like to view...
Which of the following conditions must be correct for transformation to occur?
A. Temperature B. Ionic conditions C. Correct nutrient balance D. All of the answers are correct
The serotinous cones of the longleaf pine, Pinus palustris, depend on _____ to release their seeds.
A. daylight B. extended freezes C. sustained rainfall D. fire E. animals
Scientists have no way to measure objectively the
A. love that humans feel for a pet. B. effect of a neurotransmitter on a muscle. C. force of a muscular contraction. D. level of insulin in the bloodstream. E. volume of blood flow through an artery.
Which of the following statements about mollusks is true?
a. All have visceral ganglia, which control the opening and closing of the shell. b. Cephalopod mollusks are capable of learning and are considered the most intelligent of the invertebrates. c. They have cerebral ganglia, which control the movement of the foot. d. They have three pairs of ganglia that are unconnected and function independently. e. They have two pairs of ganglia that are connected in a ladder-like fashion.