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Arthropods

Across
The rear portion of the organism.
Arthropods that lack antennae and have six pairs of appendages which include four pairs of walking legs.
An extension of an organism's body.
Tiny holes on the abdomen of some arachnids that open and close to allow oxygen to enter.
This describes how an arthropod's body parts are divided into similar sections.
A long organic molecule made of sugars-similar to cellulose.
A chemical compound that kills insects and other arthropods.
Insects look like miniature adults when they hatch (nymphs).
Inactive form of insect after they pass through larvae molt.
Down
A terrestrial group of chelicerates characterized by eight legs, fang like pincers that inject venom and ability to produce silk.
A series of tubes that carry oxygen directly to arachnids tissues.
An organism that carries a disease from one organism to another.
Covers the side of the body and protects the gills.
Young insects do not look adults. They molt and change for as they mature.
An invertebrate animal with an exoskeleton, jointed appendages and segmented body parts.
A group of arthropods that have two distinct body sections, a hard exoskeleton, two pairs of antennae, and one pairs of appendages per segment.
Specialized respiratory structure of some arachnids built of any thin hollow sheets of tissue that look like pages of a book.
The region of an organism which the head and trunk region are combined into one long section.
An external skeleton that supports the animals tissues against gravity.
Highly adapted appendages that crush and bite food before ingestion.