What are three features shared between annelids and mollusks?

1. What common features do mollusks and annelids share?
2. How are mollusks and annelids related?
3. Why are annelids and mollusks closely related?
4. What traits are shared by molluscs annelids and arthropods?
5. What three anatomical features are common to mollusks?
6. What are the four pieces evidence that supports the conclusion that annelids and mollusks are closely related?
7. What is the common feature of all mollusks?
8. What are characteristics of Mollusca?
9. What are the phylogenetic relationships between the molluscs annelids and arthropods?
10. Which other phylum is probably most closely related to molluscs?
11. What features do arthropods share with annelids?
12. Are molluscs and arthropods related?
13. What are the main differences between annelids and arthropods?
14. How arthropods are different from molluscs and annelids?

What common features do mollusks and annelids share?

Like mollusks, however, they have a coelom. In fact, the annelid coelom is even larger, allowing greater development of internal organs. Annelids have other similarities with mollusks, including: A closed circulatory system (like cephalopods).

How are mollusks and annelids related?

Molluscs include such familiar creatures as clams, oysters, snails, and octopi. They share a distant common ancestor with the annelid worms, an evolutionary heritage suggested by their larval form, called a trochophore larva, found in all molluscs and in certain marine annelids called polychaete worms.

Why are annelids and mollusks closely related?

Because annelids are actually more closely related to species within the mollusk phylum than they are to their worm cousins in the flatworm and roundworm phyla. Although they look quite different on the outside, mollusks and annelids share a more recent common ancestor than roundworms and annelids.

What traits are shared by molluscs annelids and arthropods?

Also, they share with molluscs the presence of a true coelom. Annelids and arthropods are also protostomes, that is, the embryonic blastopore develops into the mouth. What type of symmetry do annelids and arthropods have? A distinguishing characteristic shared by annelids and arthropods is their body segmentation.

What three anatomical features are common to mollusks?

The three most universal features defining modern molluscs are a mantle with a significant cavity used for breathing and excretion, the presence of a radula (except for bivalves), and the structure of the nervous system.

What are the four pieces evidence that supports the conclusion that annelids and mollusks are closely related?

Both mollusks and annelids remove their metabolic wastes using nephridia. Their blood is pumped by a heart and it is contained by a network of blood vessels. They are coelomates. Both annelids and mollusks have true coeloms between their body tissues.

What is the common feature of all mollusks?

WHAT FEATURES DO MOLLUSKS HAVE IN COMMON? As well as a shell, most mollusks have a muscular foot for creeping or burrowing. Some also have a head with sense organs. The soft body includes lungs or gills for breathing, and digestive and reproductive parts, all enclosed by a skinlike organ called the mantle.

What are characteristics of Mollusca?

Molluscs (also know as mollusks) are soft-bodied, bilaterally symmetrical, segmented, coelomate animals; usually shelled having a mantle, ventral foot, anterior head, and a dorsal visceral mass.

What are the phylogenetic relationships between the molluscs annelids and arthropods?

The resulting tree suggests that the molluscs and annelids form a monophyletic lineage and unites the molluscan taxa to a monophyletic group. Therefore, the result supports the Eutrochozoa hypothesis and the monophyly of molluscs, and indicates early acquisition of segmented body plans in arthropods.

Which other phylum is probably most closely related to molluscs?

Mollusks are probably most closely related to organisms in the phylum Annelida, also known as segmented worms. This phylum includes the earthworm and leech.

What features do arthropods share with annelids?

The arthropods share many features with the phylum Annelida. Both arthropods and annelids are segmented, and members of the annelid class Polychaeta have a pair of appendages on each segment. ... Annelids possess a coelom, which in arthropods is present only in the embryo.

Are molluscs and arthropods related?

What are the Similarities Between Mollusks and Arthropods? Mollusks and arthropods belong to two phyla of Kingdom Animalia. Both groups contain invertebrates.

What are the main differences between annelids and arthropods?

The key difference between arthropods and annelids is that the arthropods are a group of invertebrates that includes animals having a segmented body, an exoskeleton and paired appendages while annelids are another group of invertebrates that includes segmented worms possessing transverse rings.

How arthropods are different from molluscs and annelids?

An arthropod is an invertebrate that has an exoskeleton, a segmented body, and jointed attachments called appendages, and an annelids have worm-like features. Molluscs have a soft, unsegmented body with bilateral symmetry.