Insect Orders
Have wings covered with tiny scales
lepidoptera
whale shark
the large fin at the rear of a fish that serves as the fish's propeller and rudder
caudal fin
the egg-laying female in a colony of bees or ants
What are the leg-like appendages on either side of a spider's mouth with which it handles maxillae?
pedipalps
includes pestilent insects such as flies, mosquitoes, and gnats
diptera
unusual cartilaginous fish that lack jaws
lamprey and hagfish
a median fin on the top of a fish's body
dorsal fin
the portion of an insect's body that contains the heart and much of the digestive, respiratory, and excretory systems
abdomen
What is the front segment of a spider?
cephalothorax
have hard, shell-like forewings
coleoptera
what are the two major groups of fish
cartilaginous fish and bony fish
the vane-like projections from the front of a fish's gill arches that protect the gills by straining debris from the water
gill rakers
the wings of an insect are attached to what
thorax
what are spiders, ticks, scorpions, and daddy longlegs classified as
arachnids
includes the most common social insects
hymenoptera
what is the largest group of arthropods
crustaceans
the small, bony plates embedded in a fish's skin that act as a protective covering
scales
in scientific usage, what is any insect with piercing-sucking mouthparts and a half-wing design
bug
what statement is true of spiders and a typical insect as well
air enters the body through spiracles and is distributed by tracheae
have tooth-like projections on their mouthparts
odonata
what are the excretory organs of a crayfish
green glands
the organs on each side of a fish's head that allow the fish to extract oxygen from the water
gills
what is an immature form of an insect that looks much like an adult but has different body proportions and lacks wings
nymph
what are animals without backbones called
invertebrates