Entomology exam 1 (correct answers)

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mouthparts withdrawn into head capsule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