Download Cp 2 part 2 STUDY GUIDE

CHAPTER 2, PART 2
INVERTEBRATES STUDY GUIDE & REVIEW
Vocabulary: Define the terms
1. open circulatory system
2. closed circulatory system
3. Mantle
4. Endoskeleton
5. Exoskeleton
6. Cephalothorax
7. Chelicerae
8. Mandibles
9. Sieve Plate
10. Nerve Ring
11. Tube Feet
14. Simple eyes
12. Metamorphosis
15. antennae
13. Compound eyes
16. segment
Fill in the blank
1. All mollusks have a foot, a _______ ____, and a mantle.
2. Most mollusks have a _____.
3. Mollusks and ________ ______ have a coelom and a circulatory system.
4. In an ______ circulatory system, the heart pumps blood through vessels into
spaces called sinuses.
5. In a ______ circulatory system, the blood is pumped through a closed network of
vessels.
6. _________ are identical or nearly identical _________ body parts.
7. All arthropods have ______________, _____________, _____________ and
________________.
8. Echinoderms live in _______________.
9. The word echinoderm means ____________ _______________.
10. The larvae of echinoderms have _____________ symmetry, but as adults
_____________ symmetry.
11. ______________, ___________ and ___________ are three groups of mollusks.
12. The word arthropod means _______________ _______________.
13. The __________ of crustaceans makes them different from other arthropods.
14. Mollusks live __________________
15. Slugs and snails are examples of _____________ in the mollusks.
16. Squids and octopuses are examples of _______________ in the mollusks.
True or False: Correct false answers
1. Echinoderms have a brain similar to vertebrates.
2. Millipedes have two pairs of legs per segment.
3. The three main body parts of an insect are head, abdomen, and legs.
4. 97% of all animal species are classified as arthropods.
5. Cephalopods have the most advanced nervous system and are the smartest of
all invertebrates.
6. An octopus has an open circulatory system where the heart circulates blood
through vessels that form a loop.
7. In most mollusks, the outside shell secretes a mantle.
8. In addition to a foot, every mollusk has a coelom, which contains the gills, guts,
and other organs.
9. Bivalves have a foot that secretes mucus that helps them slide along.
10. Clams, oysters and mussels are examples of bivalves or two shelled mollusks.