answer 12 multiple question

__________with a "cavity" forming between the mesoderm and the endoderm.

	A. Coelom
	B. Pseudocoelomate
	C. Acoelomate
	D. Coelomate

___________is the inner layer which forms the lining inside the body cavity.

	A. Endoderm
	B. Ectoderm
	C. Mesoderm
	D. Acoeloderm

There are about 1.5 million named animal species. These are divided into approximately ______ phyla, based on the complexity of their body.

	A. 15
	B. 25
	C. 30
	D. 34
	E. 43

Platyhelminthes are apart of which of the following class____________.

	A. Hydrozoa
	B. Trematoda
	C. Gastropoda
	D. Oligochaeta
	E. None of the above

_________are with a true body cavity forming within the mesoderm.

	A. Coelomate
	B. Pseudocoelomate
	C. Acoelomate
	D. None of the above

Snails and slugs belong to which class?

	A. Cestoda
	B. Gastropoda
	C. Bivalvia
	D. Hydrozoa

The Chelicerata which is a subphylum of Arthropoda is a part of what class?

	A. Agnatha
	B. Arachnida
	C. Bivalvia
	D. Osteichthyes

Frogs, toads, and salamanders are apart of which of the following Phylums?

	A. Mollusca
	B. Platyhelminthes
	C. Arthropoda
	D. Chordata
	E. None of the above

The study of invertebrate animals is called invertebrate zoology.

	A. True
	B. False

The middle layer which forms the organs inside the body is called______.

	A. Endoderm
	B. Ectoderm
	C. Mesoderm
	D. Acoelomate
	E. None of the above

Leeches belong in which of the following classes?

	A. Oligochaeta
	B. Insecta
	C. Hirudinea
	D. Gastropoda
	E. None of the above

What phylum do bony fish belong to?

	A. Chordata
	B. Anthropoda
	C. Annelida
	D. Molusca

Tapeworms are apart of the family called Arachnida.

	A. True
	B. False

Vertebrata is a Subphylum of which of the following phylums?

	A. Nematoda
	B. Arthropoda
	C. Chordata

Freshwater hydra is apart of the Phylum group called Annelida.

	A. True
	B. False