Chapter 24 Biology

Animal with an endoskeleton and a backbone

• Invertebrate
• Vertebrate
• Endoskeleton
• Exoskeleton

Internal skeleton

• Bilateral
• Radial
• Endoskeleton
• Exoskeleton

Balance or similarity in body structures of organisms

• Symmetry
• Asymmetry
• Radial
• Bilateral

Inner layer of cells in the gastrula that develops

• Endoskeleton
• Exoskeleton
• Endoderm
• Ectoderm

Body plan that can be divided into mirror images along only one plane through the central axis

• Assymetry
• Radial
• Bilateral
• Endoderm

Irregular shape no symmetry or balance

• Asymmetry
• Symmetry
• Bilateral
• Radial

Animal without a backbone

• Vertebrate
• Endoskeleton
• Exoskeleton
• Invertebrate

Outer layer of cells in the gastrula that develops into nervous tissue and skin

• Endoskeleton
• Exoskeleton
• Endoderm
• Ectoderm

Hard or tough outer covering of many invertebrates 

• Endoskeleton
• Exoskeleton
• Endoderm
• Ectoderm

Body plan that can be divided along any plane, through central axis, into roughly equal halves

• Asymmetry
• Bilateral
• Radial
• Endoderm