SI #24 Main Activity

What era is known for the diversification of modern animal groups?

• Cenozoic
• Mesozoic
• Paleozoic
• Neozoic

What is radial symmetry?

• Divides body into left and right
• Divides body into front and back
• Arrangement around a central axis
• Divides body into top and bottom

Which organisms typically exhibit radial symmetry?

• Mammals
• Birds
• Jellyfish
• Coral

Tags

NGSS.MS-LS4-2

What type of symmetry is characterized by a division into two mirror-image halves?

• Radial symmetry
• Bilateral symmetry
• Asymmetrical symmetry

What term describes the evolutionary trend toward having a sensory 'head' area?

• Cephalization
• Segmentation
• Bilateralism

Tags

NGSS.HS-LS4-4

Which body cavity type is completely lined by mesoderm?

• Eucoelomates
• Acoelomates
• Pseudocoelomates

What distinguishes a pseudocoelom from a true coelom?

• Has no mesoderm lining
• Lined by mesoderm only
• Lined by endoderm and mesoderm

Which group of animals are diploblasts?

• Sponges
• Cnidarians
• Mollusks
• Arthropods

Tags

NGSS.MS-LS4-2

What is the role of mesoderm in triploblasts?

• Forms the nervous system
• Forms the digestive tract
• Forms muscles and endoskeleton

Tags

NGSS.HS-LS1-2

NGSS.HS-LS1-4

Which period follows the Tertiary in the Cenozoic era?

• Jurassic
• Quaternary
• Cretaceous
• Triassic

Tags

NGSS.MS-ESS1-4