Invertebrate Station Lab Make up Assignment: Answer the following questions on your own paper in completesentences. You may use your notes, textbook, and internet resources to answer the questions.

STATION 1: PHYLUM PORIFERA

  1. What does the name “porifera” mean? Why is it a fitting name for this group?
  2. What type of symmetry do sponges have?
  3. How do sponges get food?
  4. How would a sponge with spicules feel- rough or squishy?
  5. What level of organization do we see in sponges (cellular, tissue, organ, or organ system)?

STATION 2: PHYLUM CNIDARIA

  1. What does the name “cnidarian” mean? Why is it a fitting name for this group?
  2. Which body plan does the hydra have- Polyp or Medusa?
  3. Name two sessile cnidarians.
  4. What type of body plan do the sessile cnidarians have?
  5. How do cnidarians protect themselves from predators and capture prey?
  6. What level of organization do we see in cnidarians (cellular, tissue, organ, or organ system)?

STATION 3: PHYLUM PLATYHELMENTHES

  1. What type of symmetry do members of this phylum have?
  2. What is the purpose of the planarian’s eyespots?
  3. The tube that takes food into the planarian’s body is called the ______.
  4. What happens if you cut a planarian in half? What type of reproduction is this?
  5. What level of organization do we see in this group (cellular, tissue, organ, or organ system)?
  6. Name two examples of parasitic flatworms.

STATION 4: PHYLUM NEMATODA

  1. What type of symmetry do members of this phylum have?
  2. Do nematodes and other roundworms exhibit cephalization?
  3. Name two examples of this phylum.
  4. What level of organization do we see in this group (cellular, tissue, organs, or organ systems)?
  5. What advancement to digestion do we see in this group?
  6. What type of body cavity do members of this phylum have?

STATION 5: PHYLUM ANNELIDA

  1. Do annelids exhibit cephalization?
  2. What level of organization do we see in this group (cellular, tissue, organ, or organ system)?
  3. What type of body cavity do members of this group have?
  4. What type of symmetry do members of this phylum have?
  5. How do members of this phylum move?
  6. Name a parasitic member of this group.

STATION 6: PHYLUM MOLLUSCA

  1. Which class of mollusk does a clam belong to?
  2. What type of symmetry do mollusks exhibit?
  3. How does a clam get its food?
  4. Which class of mollusk does an octopus belong to?
  5. How does an octopus get its food?
  6. How do mollusks protect themselves?

STATION 7: PHYLUM ARTHROPODA

  1. What does the name “arthropod” mean?
  2. Which class of arthropods does a crayfish belong to?
  3. How many legs and segments does it have?
  4. What type of symmetry do members of this phylum exhibit?
  5. How do members of this phylum protect themselves?
  6. Which class of arthropods does a grasshopper belong to?
  7. How many legs and segments does it have?

STATION 8: PHYLUM ECHINODERMATA

  1. Where do members of this phylum live?
  2. What does the name “echinoderm” mean?
  3. What type of symmetry do these organisms have as adults?
  4. What is the name of the system starfish use to move around and get food?
  5. Name two ways starfish can defend themselves from predators?
  6. What does the term “keystone species” mean and how do starfish fit this role?