Answer the following questions based on the photographs below.  Label your answers with the letters of each question.  Spelling counts. Be very specific. A. Is this a mysticete or an odontocete?  How do you know? B. This is a dorsal view of the cranium of a cetacean. Is this a mysticete or an odontocete?  How do you know? C. What is the name and the function of the structures shown here? D.  Is this a male or a female? How do you know? E. Is this a male or a female? How do you know?      

Sharks that “ram ventilate” only bring water into their gill chambers through the spiracles.

Manatees and dugongs are herbivores that live in shallow coastal areas (e.g., bays). As is typical of herbivores, they have very long intestines.

  Look at item 2. This is the _____________. (Important: posterior is to the left and anterior is to the right in this image)

The tunicates and the lancelets are groups of chordates that lack a cranium and a vertebral column.

There are many different types of joints. The most mobile joints are classifies and ______ joints. Examples include your elbow joint, knee joint, shoulder joint,

Birds are considered reptiles. There is evidence to support the hypothesis that they evolved from a group of dinosaurs.

The pectoral fins of sharks are used to provide forward propulsion during swimming.

Most sea snakes live near the coastline in estuaries or coral reefs.  Some are oviparous and come to land to lay eggs, but the majority are aplacentally viviparous.

The lampreys and hagfishes are included in a group called Agnatha.  This name refers to the round shape of their mouths.