Biology Quiz: Levels of Organisation in Animalia

Which level of organisation is exhibited by sponges?

• Organ level

• Tissue level

• Cellular level

• Organ system level

In which group of animals are organs associated to form functional systems?

• Arthropods

• Platyhelminthes

• Annelids

• Molluscs

What type of symmetry do animals like annelids and arthropods exhibit?

• No symmetry

• Bilateral symmetry

• Radial symmetry

• Asymmetrical

Which animals are classified as diploblastic?

• Molluscs

• Arthropods

• Coelenterates

• Annelids

What is the body cavity lined by mesoderm called?

• Pseudocoelom

• Mesoderm

• Coelom

• Endoderm

Which animals possess a third germinal layer, mesoderm, in between the ectoderm and endoderm?

• Coelenterates

• Platyhelminthes

• Echinoderms

• Chordates

What is the pattern called where the body is divided into segments with a serial repetition of organs?

• Segmentation

• Notochord

• Metamerism

• Symmetry

Which animals are classified as chordates?

• Porifera

• Coelenterates

• Annelids

• Echinoderms

What is the body cavity not lined by mesoderm called?

• Endoderm

• Mesoderm

• Pseudocoelom

• Coelom

Which animals exhibit metameric segmentation?

• Earthworm

• Sponges

• Coelenterates

• Arthropods