Phylum Arthropoda & Phylum Mollusca

Characteristic of Phylum Mollusca:​ ​ ​ ​ ​

• Have shell

• Has tagmata

Characteristics of Arthropoda:

• Has tagmata

• Undergoes metamorphosis

• Feed using radula

• Has mantle

Phylum Mollusca has _____ body parts.

Phylum Mollusca and Arthropoda are Eumatazoa.

• Yes

• Arthropoda only

• Mollusca only

• No

Functions of hard chitinous exoskeleton in Phylum Artrhopoda

• Allow specialisation of body parts to conduct specific function

• Create cavity

• Protect body from dehydration & mechanical injuries

• Provide attachment site of muscle

What is the hard shell of Phylum Mollusca made of?

Are Mollusca and Arthropoda protostome?

• Mollusca only

• Arthropoda only

• No

• Yes

3 body parts of Phylum Mollusca

• Has muscular foot

• Has visceral mass

• Has paired jointed appendages

• Has mantle

Unique characteristics of Phylum Arthropoda

• Has tagmata

• Has variety respiratory organs

• Has variety of mouth structures

• Has low developed sensory organs

Respiratory system of Phylum Arthropoda:

• Book lungs

• Gills

• Trachea

• Skin