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	9. These animals all have one behavioral trait in common: they are sessile. In order to reproduce, animal B needs to insert its gametes inside another individual.What feature present in animal B would help facilitate sexual reproduction?
	a. they are hermaphroditic
	b. they are dioecious
	c. they are clonal
	d. they are self fertilizing
	e. they play music
	10. Animal B feeds by sticking its legs into the current to capture food. This is a type of
	a. herbivory
	b. suspension feeding
	c. deposit feeding
	d. parasitism
	e. locomotion
	A B C
	11. To what subphylum does animal A belong?
	a. Urochordata
	b. Chordata
	c. Vertebrata
	d. Deuterostomata
	e. Cephalachordata
	12. What specialized structure does animal C use to feed?
	a. radula
	b. cnidocytes
	c. Aristotle's lantern
	d. tube feet
	e. ossicles
	A B C D
	13. Which two animals here are most closely related?
	a. A and B
	b. B and C
	c. C and D
	d. A and D
	e. B and D
	14. Which animal must completely replace its skeleton before it can grow larger?
	a. A b. B c. C d. D e. none of these animals
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