Chapter 2: Problem 8

What kinds of animals are included among the arthropods? What kinds are included among the mollusks?

Short Answer

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Arthropods are invertebrate animals with an exoskeleton, segmented body, and jointed appendages, including insects (e.g., ants, bees, butterflies, beetles), arachnids (e.g., spiders, scorpions, ticks, mites), crustaceans (e.g., crabs, lobsters, shrimp, barnacles), and myriapods (e.g., centipedes, millipedes). Mollusks are invertebrate animals with soft bodies, and usually have a shell, including gastropods (e.g., snails, slugs), bivalves (e.g., clams, oysters, mussels, scallops), and cephalopods (e.g., octopuses, squids, cuttlefish, nautiluses).

Step by step solution

Identify Arthropods

Arthropods are a group of invertebrate animals with an exoskeleton, a segmented body, and jointed appendages. Some common types of arthropods include: 1. Insects: e.g., ants, bees, butterflies, beetles. 2. Arachnids: e.g., spiders, scorpions, ticks, mites. 3. Crustaceans: e.g., crabs, lobsters, shrimp, barnacles. 4. Myriapods: e.g., centipedes, millipedes.

Identify Mollusks

Mollusks are another group of invertebrate animals, which are characterized by their soft bodies and lack of an internal skeleton. Most mollusks have a shell to protect their bodies, although some do not. Some common types of mollusks include: 1. Gastropods: e.g., snails, slugs. 2. Bivalves: e.g., clams, oysters, mussels, scallops. 3. Cephalopods: e.g., octopuses, squids, cuttlefish, nautiluses.

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What kinds of animals are included among the arthropods? What kinds are included among the mollusks?

Short Answer

Step by step solution

Identify Arthropods

Identify Mollusks

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