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Invertebrate Animals CHAPTER the BIG idea Invertebrate animals have a variety of body plans and adaptations. Most animals are invertebrates. Cnidarians.

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Presentation on theme: "Invertebrate Animals CHAPTER the BIG idea Invertebrate animals have a variety of body plans and adaptations. Most animals are invertebrates. Cnidarians."— Presentation transcript:

1 Invertebrate Animals CHAPTER the BIG idea Invertebrate animals have a variety of body plans and adaptations. Most animals are invertebrates. Cnidarians and worms have different body plans. Most mollusks have shells, and echinoderms have spiny skeletons. Arthropods have exoskeletons and joints. CHAPTER OUTLINE NEW CHAPTER CHAPTER RESOURCES

2 VOCABULARY KEY CONCEPT CHAPTER HOME SECTION OUTLINE SECTION OUTLINE sponge invertebrate Most animals are invertebrates. larva sessile Invertebrates are a diverse group of animals. Species of invertebrates live in almost every environment. Sponges are simple invertebrates that have several types of specialized cells. 4.1 CHAPTER RESOURCES CHAPTER RESOURCES

3 VOCABULARY KEY CONCEPT CHAPTER HOME An animal that has no backbone. invertebrate KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Most animals are invertebrates. sponge invertebrate sessile larva 4.1 CHAPTER RESOURCES CHAPTER RESOURCES

4 VOCABULARY KEY CONCEPT CHAPTER HOME A simple multicellular invertebrate animal that lives attached to one place and filters food from water. sponge KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Most animals are invertebrates. sponge invertebrate sessile larva 4.1 CHAPTER RESOURCES CHAPTER RESOURCES

5 VOCABULARY KEY CONCEPT CHAPTER HOME The quality of being attached to one spot; not free-moving. sessile KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Most animals are invertebrates. sponge invertebrate sessile larva 4.1 CHAPTER RESOURCES CHAPTER RESOURCES

6 VOCABULARY KEY CONCEPT CHAPTER HOME A free-living early form of a developing organism that is very different from its adult form. larva KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Most animals are invertebrates. sponge invertebrate larva sessile 4.1 CHAPTER RESOURCES CHAPTER RESOURCES

7 VOCABULARY KEY CONCEPT CHAPTER HOME Cnidarians and worms have different body plans. SECTION OUTLINE SECTION OUTLINE tentacle mobile cnidarian Cnidarians have simple bodies with specialized cells and tissues. Most worms have organs and complex body systems. 4.2 CHAPTER RESOURCES CHAPTER RESOURCES

8 VOCABULARY KEY CONCEPT CHAPTER HOME An invertebrate animal such as a jellyfish that has a body with radial symmetry, tentacles with stinging cells, and a central internal cavity. cnidarian KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Cnidarians and worms have different body plans. tentacle mobile cnidarian 4.2 CHAPTER RESOURCES CHAPTER RESOURCES

9 VOCABULARY KEY CONCEPT CHAPTER HOME A long, slender, flexible extension of the body of certain animals, such as jellyfish. Tentacles are used to touch, move, or hold. tentacle KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Cnidarians and worms have different body plans. tentacle mobile cnidarian 4.2 CHAPTER RESOURCES CHAPTER RESOURCES

10 VOCABULARY KEY CONCEPT CHAPTER HOME Able to move from place to place. mobile KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Cnidarians and worms have different body plans. tentacle mobile cnidarian 4.2 CHAPTER RESOURCES CHAPTER RESOURCES

11 VOCABULARY KEY CONCEPT CHAPTER HOME SECTION OUTLINE SECTION OUTLINE Most mollusks have shells, and echinoderms have spiny skeletons. gill mollusk lung echinoderm 4.3 Mollusks include bivalves, gastropods, and cephalopods. Echinoderms have a water vascular system and tube feet. VISUALIZATION Watch how different cephalopods move. CHAPTER RESOURCES CHAPTER RESOURCES

12 VOCABULARY KEY CONCEPT CHAPTER HOME An invertebrate animal with a soft body, a muscular foot, and a mantle. Many mollusks have a hard outer shell. mollusk KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Most mollusks have shells, and echinoderms have spiny skeletons. gill mollusk lung echinoderm 4.3 CHAPTER RESOURCES CHAPTER RESOURCES

13 VOCABULARY KEY CONCEPT CHAPTER HOME A respiratory organ that filters oxygen dissolved in water. gill KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Most mollusks have shells, and echinoderms have spiny skeletons. gill mollusk lung echinoderm 4.3 CHAPTER RESOURCES CHAPTER RESOURCES

14 VOCABULARY KEY CONCEPT CHAPTER HOME A respiratory organ that absorbs oxygen from the air. lung KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Most mollusks have shells, and echinoderms have spiny skeletons. gill mollusk lung echinoderm 4.3 CHAPTER RESOURCES CHAPTER RESOURCES

15 VOCABULARY KEY CONCEPT CHAPTER HOME An invertebrate sea animal with a spiny skeleton, a water vascular system, and tube feet. echinoderm KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Most mollusks have shells, and echinoderms have spiny skeletons. gill mollusk lung echinoderm 4.3 CHAPTER RESOURCES CHAPTER RESOURCES

16 VOCABULARY KEY CONCEPT CHAPTER HOME SECTION OUTLINE SECTION OUTLINE Arthropods have exoskeletons and joints. Arthropods, which include insects, crustaceans, and arachnids, are the most abundant and diverse group of animals. Includes spiders, ticks, mites, and scorpions 4 pairs of legs, 2 body segments, no antennae Most live on land Arachnids Includes beetles, bees, wasps, ants, butterflies, moths, and grasshoppers 3 pairs of legs, 3 body segments, 1 pair of antennae Most live on land Insects Includes shrimp, crabs, lobsters,barnacles, and pill bugs Number of body segments and pairs of legs varies, 2 pairs of antennae Most live in water; some live on land Crustaceans molting arthropod insect exoskeleton metamorphosis 4.4 CHAPTER RESOURCES CHAPTER RESOURCES

17 VOCABULARY KEY CONCEPT CHAPTER HOME An invertebrate animal with an exoskeleton, a segmented body, and jointed legs. arthropod KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Arthropods have exoskeletons and joints. molting arthropod insect exoskeleton metamorphosis 4.4 CHAPTER RESOURCES CHAPTER RESOURCES

18 VOCABULARY KEY CONCEPT CHAPTER HOME The strong, flexible outer covering of some invertebrate animals, such as arthropods. exoskeleton Arthropods have exoskeletons and joints. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY molting arthropod insect exoskeleton metamorphosis 4.4 CHAPTER RESOURCES CHAPTER RESOURCES

19 VOCABULARY KEY CONCEPT CHAPTER HOME The process of an arthropod shedding its exoskeleton to allow for growth. molting Arthropods have exoskeletons and joints. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY molting arthropod insect exoskeleton metamorphosis 4.4 CHAPTER RESOURCES CHAPTER RESOURCES

20 VOCABULARY KEY CONCEPT CHAPTER HOME An arthropod with three body segments, six legs, two antennae, and compound eyes. insect Arthropods have exoskeletons and joints. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY molting arthropod insect exoskeleton metamorphosis 4.4 CHAPTER RESOURCES CHAPTER RESOURCES

21 VOCABULARY KEY CONCEPT CHAPTER HOME The transformation of an animal from its larval form into its adult form. metamorphosis Arthropods have exoskeletons and joints. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY molting arthropod insect exoskeleton metamorphosis 4.4 CHAPTER RESOURCES CHAPTER RESOURCES

22 VOCABULARY KEY CONCEPT CHAPTER HOME I. Most animals are invertebrates. A. Invertebrates are a diverse group of organisms. B. Sponges are simple animals. 2. Reproduction KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY 1. Specialized Cells Most animals are invertebrates. sponge invertebrate sessile larva 4.1 CHAPTER RESOURCES CHAPTER RESOURCES

23 VOCABULARY KEY CONCEPT CHAPTER HOME II. Cnidarians and worms have different body plans. A. Cnidarians have simple body systems. B. Animals have different body plans. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY 1. Tissues and Body Systems 2. Reproduction Cnidarians and worms have different body plans. 1. Segmented Worms 2. Flatworms and Roundworms tentacle mobile cnidarian C. Most worms have complex body systems. 4.2 CHAPTER RESOURCES CHAPTER RESOURCES

24 VOCABULARY KEY CONCEPT CHAPTER HOME III. Most mollusks have shells, and echinoderms have spiny skeletons. A. Mollusks are soft-bodied animals. B. Mollusks show a range of adaptations. 1. Bivalves 2. Gastropods KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY Most mollusks have shells, and echinoderms have spiny skeletons. 3. Cephalopods gill mollusk lung echinoderm 1. Spines and Skeletons 2. Water Vascular System and Tube Feet C. Echinoderms have unusual adaptations. 4.3 CHAPTER RESOURCES CHAPTER RESOURCES

25 VOCABULARY KEY CONCEPT CHAPTER HOME IV. Arthropods have exoskeletons and joints. A. Most invertebrates are arthropods. B. Insects are six-legged arthropods. 1. Exoskeletons and Jointed Parts 2. Complex Body Systems Arthropods have exoskeletons and joints. molting arthropod insect exoskeleton C. Crustaceans live in water and on land. D. Arachnids are eight-legged arthropods. E. Millipedes and centipedes are arthropods. KEY CONCEPT SUMMARY KEY CONCEPT SUMMARY metamorphosis 4.4 CHAPTER RESOURCES CHAPTER RESOURCES

26 CHAPTER HOME Image Gallery Click on the icons to see a larger image or animation. VISUALIZATION Watch how different cephalopods move.

27 CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

28 CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

29 CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

30 CHAPTER HOME Image Gallery BACK TO IMAGE GALLERY

31 BACK TO CHAPTER Click on the items below to access resources on Standardized Test Practice Practice state standardized tests Math Tutorial Review math concepts Resource Centers Get more information on select science topics Content Review Review key concepts and vocabulary Audio Readings Hear chapter audio readings CLASSZONE.COM Chapter Resources CHAPTER HOME Animations Link to all the McDougal Littell Science animations Review Game Play a fun interactive review game Image Gallery Click here to review chapter images and animations


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