Choose the best answer

1			Which feature is not characteristic of the animals? Need a Hint?
			A)	multicellular heterotrophs
			B)	sexual reproduction
			C)	embryonic development
			D)	cell walls
2			Most of the phyla of the animal kingdom are found Need a Hint?
			A)	on land.
			B)	in the ocean.
			C)	burrowing underground.
			D)	in freshwater habitats.
3			The subkingdom of animals that lack symmetry and have no true tissues or organs is the Need a Hint?
			A)	Eumetazoa.
			B)	Radiata.
			C)	Parazoa.
			D)	Bilateria.
4			Except for the Radiata, the eumetazoans Need a Hint?
			A)	lack true tissues and organs.
			B)	are monoblastic.
			C)	are diploblastic.
			D)	are triploblastic.
5			Cnidarians and ctenophorans differ from other eumetazoans by having Need a Hint?
			A)	radial symmetry.
			B)	bilateral symmetry.
			C)	major organ systems.
			D)	three tissue layers.
6			The advantage of bilateral symmetry is that it allowed for the evolution of Need a Hint?
			A)	appendages.
			B)	cephalization.
			C)	reproductive structures.
			D)	parasites.
7			Members of which group are not deuterostomes? Need a Hint?
			A)	chordates
			B)	echinoderms
			C)	arthropods
			D)	none of these, all are deuterostomes
8			The evolution of an internal body cavity offered an advantage in animal body design in all areas except Need a Hint?
			A)	circulation.
			B)	digestion.
			C)	freedom of movement.
			D)	gamete storage.
9			The segments of annelids are Need a Hint?
			A)	apparent in the embryo but not in the adult.
			B)	specialized for different functions.
			C)	most obvious in the mesoderm (muscles) but not in the ectoderm.
			D)	repetitive-each able to develop a complete set of adult organs.
10			Which of the following hypotheses about the origin of metazoans is supported by ribosomal RNA analysis? Need a Hint?
			A)	the multinucleate hypothesis
			B)	the colonial flagellate hypothesis
			C)	the polyphyletic origin hypothesis
			D)	None of these; rRNA analysis doesn't support any specific hypothesis.