Animal Body Plans-Chapter 25

Which term refers to how parts are arranged around a point or axis?

• Symmetry
• Asymmetry
• Phylogeny
• Ecology

Which term refers to the lack of a central point or axis?

• Symmetry

• Asymmetry

• Phylogeny

• Ecology

Which term refers to a true body cavity?

• Exoskeleton
• Endoskeleton
• Cephalization
• Coelom

Which term of direction refers to the head end?

• Anterior
• Posterior
• Dorsal
• Ventral

The embryo layer that forms the skin and nervous tissue is 

• endoderm

• ectoderm

• mesoderm

• protostome

The animal's digestive tract forms from the

• endoderm

• extoderm

• mesoderm

• protostome

Tags

NGSS.HS-LS1-4

This body type is considered a false body cavity.

• Psuedocoelomate
• Coelomate
• Acoelomate
• Triploblast

The embryo layer that forms the skin and nervous tissue is the _____.

• endoderm

• mesoderm

• ectoderm

• deuterostome

The middle layer of the blastocyst is the

• endoderm

• ectoderm

• mesoderm

• deuterostome

If the opening in the gastrula turns into the organisms mouth then it must be a

• deuterostome

• protostome

• human

• dog