Heather


 * General Body structure: **
 * 1) Explore the type of symmetry that each organism has.
 * 2) Label a picture of the organism with these terms: anterior, posterior, dorsal, ventral, lateral, head, thorax, abdomen.
 * 3) What is the advantage of various structures found on the body such as appendages, mouth parts, sensory antennae, skin receptors, etc. Discuss all the different types of receptors.

1. Symmetry Pig= lateral Crayfish= lateral Starfish= radial

2.

3. The advantages of the different structures vary for each animal we are dissecting. With the pig the mouth parts such as the tongue has the ability to taste. The pig also has teeth, which can help with the various things such as chewing. The advantages of sensory antennae on a crayfish allow it to tell what’s in front of it. Ii can also tell it when that thing is moving, which enables the crayfish to get food. Starfish skin receptors allow it to know when food is near or when it is in danger. A starfish gets food by feeling it brush against it then it releases its stomach to eat. These are many ways different receptors help each other and help the animal they are apart of.