Chapters 36-38 Flashcards
Lobsters, crayfish, and shrimp are examples of what?
arthropods and crustaceans
Spiders, ticks, and scropions are classified as ___.
arachnids
The anterior body segment of a crustacean or spider is called the ___.
cephalothorax
The appendages on either side of a spider’s mouth with which it manipulates is food are the ___.
pedipalps
The respiratory organs found in most crustaceans are called ___.
gills
The short, fingerlike organs of a spider’s abdomen with which it spins silk are the ___.
spinnerets
The excretory organs of a crayfish are ___.
green glands
The subphylum of extinct arthropods is ___.
trilobita
Most aquatic arthropods are categorized into which subphylum?
crustacea
Spiders use which structure for respiration?
book lungs
A free-swimming crustacean larva is called ___.
nauplius
fused body segments that are usually specialized for a specific function are called ___.
tagmata
Terrestrial crustaceans that lack adaptions for water (e.g., pill bugs) are classed as ___.
isopods
The appendages with princers found on the crayfish are called ___.
chelipeds
The five ventral appendages found on a crayfish abdomen are called ___.
swimmerets
Name some crustaceans.
shrimp, barnacles, and water fleas
How many different types of spiders in the U.S. are poisonous to humans?
2
These dangerous arachnids cause Lyme disease and Rocky Mountain spotted fever.
ticks
The organs located on the abdomen of a grasshopper used for breathing are called ___.
spiracles
Insects are in teh subphylum
hexapoda
Which body segment of an insect has the legs and wings attached to it?
thorax
Honeybees that develop from unfertilized eggs are called what?
drones
A grasshopper’s exoskeleton is covered by a waxy cuticle secreted by the ___.
epidermis