QUIZ: Invertebrate Diversity

The basal group of Eumetazoa is ______.

• Porifera

• Cnidaria

• Ctenophora

• Platyhelminthes

This phylum is known for using comb or ctenes for their locomotion

• Platyhelminthes

• Ctenophora

• Rotifera

• Cnidaria

The following are structures that can be found in a cnidocyte EXCEPT:

• Cnidoblasts

• Operculum

• Nematocysts

• Nerve net

The following Phyla are diploblastic EXCEPT:

• Platyhelminthes

• Ctenophora

• Cnidaria

• Porifera

What do you call the anchoring organ present in the parasitic members of Phylum Platyhelminthes?

• Protonephridia

• Colloblasts

• Scolex

• Corona

Due to horizontal gene transfer, a study found out that Rotifers have genes that resemble that of bacteria and fungi

• TRUE

• FALSE

The following species are considered triploblastic, EXCEPT:

• Heteropoda venatoria

• Helix pomiata

• Hirudo medicinalis

• None of the above

This phylum is characterized strictly by open circulatory system, which entails the mixing of interstitial fluid and blood forming the hemolymph

• Arthropoda

• Nematoda

• Annelida

• Mollusca

This phylum does not possess cilia or flagella but move through contraction of longitudinal muscles

• Nematoda

• Annelida

• Mollusca

• Arthropoda

Phylum Annelida consists of three parts: mantle, head and foot

• TRUE

• FALSE