1.) ___________ make up the largest group of water animals.
2.) Animals without backbones are ____________________ .
3.) A(n) ____________________ is the external supportive covering of an animal.
4.) The part of the body located between the ear and the abdomen is the _______________ .
5.) _____________________ are either of the second pair of appendages of an arachnid that are near the mouth and are modified for a special function.
6.) A(n) ____________ is an organ as of a spider or caterpillar for producing threads of silk from the sectetions of silk glands.
7.) An animal taken by a predator for food is _____________ .
8.) A piece or part or fragment of something is a(n) _________________.
9.) ___________________ means situated before or toward the front.
10.) One of a series of small unspecialized appendages under the abdomen of many crustaceans are best developed in some decapods and are used in some cases for swimming or carrying eggs are ___________________.
11.) _____________ means active at night.
12.) A flexible, elongated tactile process chiefly on the head or mouth is a(n) __________________.
13.) A(n) ____________ is an organ for obtaining oxygen from water.
14.) Any of a long, sharp tooth is a(n) _______________.
15.) A posionous substance secreted by some animals such as snakes, scorpions, or spiders is __________________.