Entomology exam 1 (correct answers)
Arthropod correct answers phylum of animals with a segmented body, external skeleton
and jointed appendages
Crustaceans examples correct answers rolly pollys, sow bugs
Crustaceans traits correct answers armored, weak chewing mouth parts, scavengers
Diplopoda example correct answers millipedes
Diplopoda traits correct answers weak chewing mouth parts, scavengers, slow moving,
two pairs of legs/segment
Chilopoda example correct answers centipedes
Chilopoda traits correct answers single pair of legs, pseudo head, hunter, fangs
Arachnid correct answers two body regions, four pairs of legs, pedipalp (claws), hunting,
no antennae
Arachnid- Opiliones example correct answers Daddy long legs
Arachnid- Opilones traits correct answers no silk or poison glands, very long legs
Arachnid- Supulgids examples correct answers wind scorpions, sun spiders
Hexapoda example correct answers insects
Hexapoda traits correct answers three body segments, three pairs of legs, many have
wings, most blind
simple/gradual metamorphosis correct answers live in same environment as adults,
appearance of adult when immature
holometabolous/complete metamorphosis correct answers most insects, immatures live
separately from adults thus limiting competition, immature stages very different from
adult ex. larva, pupa, adult
first stage of insect evolution correct answers waterproof hardened cuticle
second stage of insect evolution correct answers tracheal system
third stage of insect evolution correct answers flapping wings
fourth stage of insect evolution correct answers pupal stages
, tracheal system function correct answers air exchange through passive diffusion, limits
insect size
open tracheal system correct answers with spiracles, ex. cockroaches, honeybees
closed tracheal sytem correct answers no spiracles, ex. mayfly, dragonfly nymphs,
found in wet environments
Hemimetabolus correct answers wings develop externally, immatures are mini adults
Holometabolous correct answers wings develop internally, pupal stage involves
complete conversion of tissues
Entognatha traits correct answers Hemimetabolous, primitive insects, wingless,
mouthparts withdrawn into head capsule
Entognatha examples correct answers Protura, Collebola, & Diplura orders
Microcoryphia correct answers only one articulation of mandible, small heads, large
eyes, true insects, ametabolous, apterygotes
apterygotes correct answers wingless
ametabolous correct answers simple metamorphosis
Thysanura correct answers eyes separated on either side of head, long filaments,
wingless, ametabolous, true insects ex. silverfish
Ephemeroptera example correct answers mayflies
Ephemeroptera traits correct answers short lived, live by water, long filaments, cannot
fold wings over back, ametabolous, true insects
Odonata example correct answers dragonfly
Odonata traits correct answers long narrow membraneous/veinous wings, forward and
hind wing move independently, cannot fold wings over back, ametabolous, true insects
Orthoptera example correct answers grasshoppers and crickets
Orthoptera traits correct answers true insects, hind legs modified for jumping,
ametabolous
Phasmatodea example correct answers walking stick
Arthropod correct answers phylum of animals with a segmented body, external skeleton
and jointed appendages
Crustaceans examples correct answers rolly pollys, sow bugs
Crustaceans traits correct answers armored, weak chewing mouth parts, scavengers
Diplopoda example correct answers millipedes
Diplopoda traits correct answers weak chewing mouth parts, scavengers, slow moving,
two pairs of legs/segment
Chilopoda example correct answers centipedes
Chilopoda traits correct answers single pair of legs, pseudo head, hunter, fangs
Arachnid correct answers two body regions, four pairs of legs, pedipalp (claws), hunting,
no antennae
Arachnid- Opiliones example correct answers Daddy long legs
Arachnid- Opilones traits correct answers no silk or poison glands, very long legs
Arachnid- Supulgids examples correct answers wind scorpions, sun spiders
Hexapoda example correct answers insects
Hexapoda traits correct answers three body segments, three pairs of legs, many have
wings, most blind
simple/gradual metamorphosis correct answers live in same environment as adults,
appearance of adult when immature
holometabolous/complete metamorphosis correct answers most insects, immatures live
separately from adults thus limiting competition, immature stages very different from
adult ex. larva, pupa, adult
first stage of insect evolution correct answers waterproof hardened cuticle
second stage of insect evolution correct answers tracheal system
third stage of insect evolution correct answers flapping wings
fourth stage of insect evolution correct answers pupal stages
, tracheal system function correct answers air exchange through passive diffusion, limits
insect size
open tracheal system correct answers with spiracles, ex. cockroaches, honeybees
closed tracheal sytem correct answers no spiracles, ex. mayfly, dragonfly nymphs,
found in wet environments
Hemimetabolus correct answers wings develop externally, immatures are mini adults
Holometabolous correct answers wings develop internally, pupal stage involves
complete conversion of tissues
Entognatha traits correct answers Hemimetabolous, primitive insects, wingless,
mouthparts withdrawn into head capsule
Entognatha examples correct answers Protura, Collebola, & Diplura orders
Microcoryphia correct answers only one articulation of mandible, small heads, large
eyes, true insects, ametabolous, apterygotes
apterygotes correct answers wingless
ametabolous correct answers simple metamorphosis
Thysanura correct answers eyes separated on either side of head, long filaments,
wingless, ametabolous, true insects ex. silverfish
Ephemeroptera example correct answers mayflies
Ephemeroptera traits correct answers short lived, live by water, long filaments, cannot
fold wings over back, ametabolous, true insects
Odonata example correct answers dragonfly
Odonata traits correct answers long narrow membraneous/veinous wings, forward and
hind wing move independently, cannot fold wings over back, ametabolous, true insects
Orthoptera example correct answers grasshoppers and crickets
Orthoptera traits correct answers true insects, hind legs modified for jumping,
ametabolous
Phasmatodea example correct answers walking stick
