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Which best describes the arthropod skeleton? a A hard exoskeleton made of shell. b A hard endoskeleton made of bone. c A hard exoskeleton made of chitin. d A soft endoskeleton made of cartilage.

Pergunta

Which best describes the arthropod skeleton?
a A hard exoskeleton made of shell.
b A hard endoskeleton made of bone.
c A hard exoskeleton made of chitin.
d A soft endoskeleton made of cartilage.

Which best describes the arthropod skeleton? a A hard exoskeleton made of shell. b A hard endoskeleton made of bone. c A hard exoskeleton made of chitin. d A soft endoskeleton made of cartilage.

Solução

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'C'

Explicação

## Step 1<br />Arthropods are a group of invertebrate animals that include insects, arachnids, myriapods, and crustaceans. They are characterized by having an exoskeleton, which is a hard outer covering that provides both support and protection.<br />## Step 2<br />The exoskeleton of arthropods is not made of bone, but rather a substance called chitin. Chitin is a long-chain polymer of a nitrogen-containing sugar, which is similar to cellulose in plants.<br />## Step 3<br />Given the options, the one that best describes the arthropod skeleton is the one that mentions a hard exoskeleton made of chitin.
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