CH 9 Test on Sponges, Cnidarians and Worms

Ch 9 Review 

WS on second half

Cnidarians and Worms

Remember to also study your quiz or notes on Sponges!

 1.  How many different Phyla are in the Kingdom Animalia?There are 35 phyla in the Kingdom Animalia

2.  What is the name of the phylum that contains corals and Jelly Fish? The phylum is named Cnidarians

3.  What are the two body shapes of an organism in this Phylum? (name and draw a sample of each)

4.  Draw a typical Jellyfish lifecycle and label: larva, medusa, and polyp.

5.  How does a Jelly Fish get its food? (list at least two steps)

The jellyfish stings its prey

           Then the jellyfish pulls the prey into its body cavity

6.  What does it mean to say that a Portuguese Man-o-war is a colony?  It means that the Man-o-War is actually a group of thousands of individuals, much like a city.

7.  All Cnidarians have one thing in common : _Stinging cells__________________.

8.  What are three characteristics of a worm?

1. They are bilateral

2. They do not have legs

3. They have a definite head and tail

9.  What are the three major classes of worms? The three classes are flat, round, and segmented worms

10.  Which one contains the tapeworm?  Flatworm

11.  What does it mean that a flatworm usually requires 2 hosts?  You may describe it or illustrate it with labels.

              Many parasites require two hosts.  They may live in the intestines of a human and then in the muscles of a pig before returning to the human again and completing the cycle.

12.  What type of worm is an earthworm? It is a Segmented Worm

13.  Name 1 way that humans get parasites.  

            -eating with dirty hands that contain eggs

            -walking in bare feet through soil that contains larva

14.  What is a closed circulatory system?  

            a system which contains the blood within vessels and it is pumped by a heart.

15.  Name a worm that has this.   An earth worm and a leech