- Give the kingdom, phylum, and class for the clam. Kingdom- Animalia ,Phylum- Mollusca ,Class- Bivalvia.
- Give several examples of species of clam. The smallest legally harvestable clams are called countnecks, next size up are littlenecks, then topnecks. Above that are the cherrystones, and the largest are called quahogs.
- What clam species is most commonly found in waters off the coast of Maine? Red tide.
- What is the mantle? What is its function? The mantle is the layer of epidermis closest to the shell, and it produces shell (same lining on shell makes pearls from particles that enter shell).
- What controls the opening and closing of the clam’s shell? The antior and postieor adductor muscles.
- How do clams move? A clam generally refers to a bivalve mollusk. They have a foot that allows for some amount of lateral movement. The foot is controlled by two muscles, the anterior and posterior foot muscles.
- How do clams feed? Clams feed by swinging tiny feelers on their gills when their shell is open. The feelers help to sweep tiny organisms from the surrounding water into the clam shell. The organisms are then siphoned into the stomach where they are digested.
- Why are clams called bivalves? Clams breathe through gills much like fish. On each side of the foot is a pair of large, thin, dual-purpose gills. Gill hairs flail the water so it loops through the clam’s body. The lashing hairs pull water into the hind end of the body, through the gill plates, and back out through the rear. The gills mine the watery matter as it passes by for oxygen and food. That’s how it breathes and eats with gills.
I was not in class for this clam project.
- What distinguishes this animal from others you have observed? It has a shell and no eyes.
- Can you observe any body symmetry? Describe it. The shell is the same on both sides.
- Compare the anatomy and organs of the clam with that of the annelid and yourself. The clam is less complex.
- What organs are present in both human and mollusc bodies? The heart.
- How is the heart connected to the respiratory organs? By the connection of intestines.
- How is the digestive system similar to yours? How is it different? They filter feed. Absorb nutrients.