How can we help?

You can also find more resources in our Help Center.

17 terms

Pence's #9 Biology Vocabulary Word Fed. 01, 2009

STUDY
PLAY
Invertebrate
Organisms that lack a backbone
Arthropods
Invertebrates with jointed appendages
Exoskeleton
External skeleton
Chitin
A substance that is chemically similar to cellulose or starch
Entomologists
Scientists who study insects
Metamorphosis
A profound change in form from one stage to the next in the life history of an organsim, as from the caterpiller to the pupa and from the pupa to the adult butterfly
Nymph
The immature form of these insects that do not pass through a pupal stage. Nymphs usually resemble the adults, but are similar, lack fully developed wings, and are sexually immature
Compound Eye
An arthropods eye is subdivided into many individual, light receptive elements, each including a leens, a transmitting apparatus, and retinal cells
Cephalothorax
The anterior part of the body in certain arachnids and crustaceans, consisting of the coalesced head and thorax
Chelicerae
Either of the first pair of fanglike appandages near the mouth of an arachnid, such as a spider, often modified for grasping and piercing
Pedipalp
One of the second pair of appendages near the mouth of a spider or other arachnid that are modified for various reproductive, predatory, or sensory functions
Book Lungs
A saccular respiratory organ found in some arachnids, such as scorpions and spiders, consisting of several parallel membranous folds arranged like the pages in a book
Spinnerets
One of the small opeenings in the back part of a spider or silk-producing insect larva, through which the sticky fluid that dries into silk is released
Carapace
A bony or chitinous shield, test, or shell covering some or all of the dorsal parts of an animal as of a turtle
Maxillipeds
One of the three pairs of crustaceans head appendages located just posterior to the maxillae and used in feeding
Swimmerets
One of the paired abdomial appendages of certain aquatic crustaceans, such as shrimp, lobsters, and isopods, that functions primarily for carrying the eggs in females and are usually adapted for swimming. Also called pleopod
Green Glands
One of the pair of excretory organs in each side of the head region of decapod crustaceans, emptying at the base of the antennae