Describe four different uses for thoracic appendages seen in different crustaceans. Use specific examples (name the corresponding taxonomic group). Relate the morphology of the appendage to its function.

Describe the skeletons of each class of sponges.

Define adaptation. How could you use a comparative approach to test whether mesoglea within a scyphozoan medusa was an adaptation for buoyancy? How could you use a different criterion to test whether the eyes of cubozoans were adaptive? Where would a comparative approach prove a better way to assess the adaptive values of a tegument in internal parasites: in tapeworms or nematodes? Why?

Identify the phylum/class of invertebrate that matches this description: These animals lack a complete digestive tract. Some are free living and some parasitic. Commonly known as flatworms.

Give a broad Conclusion about external anatomy and exoskeletal structure of Vertebrates and its importance.

Which of the following is the correct classification for this chordate animal: This vertebrate starts its life cycle in the water in a form without legs.  the adult form is a tetrapod and lives mostly on land.  These animals do not have a tail and they are specialized for movement like jumping to capture prey.   Question 26 options:   a)  Birds    b)  Cephalochordata   c)  Monotreme   d)  Class Chondrichthyes   e)  Urodela / Salamanders   f)  Anura / Frogs   g)  Eutharia   h)  Reptiles (non avian)   i)  Marsupial   j)  Superclass Agnatha   k)  Class Osteichthyes

Describe the general characteristics of mollusks. Describe the general characteristics of annelids. Describe the general characteristics of arthropods. Describe the characteristics echinoderms have in common. Note which animals are the invertebrate chordates.

How do the presence/loss, form, and function of the radula differ within members of the Classes Bivalvia, Polyplacophora, and Cephalopoda (using the squid as a representative)? B) How does this relate to the animals’ natural histories?

Explain endoskeleton present in the cockroaches.

Describe the exoskeleton and examples of organisms with this type of skeleton Which is the main component of the exoskeleton of arthropods?