GENERAL EXTERNAL ANATOMY

Question 1

Body Segments: 3 (head, thorax, and abdomen)

Answer 1

Class Insecta

Question 2

Body Segments: 2 (cephalothorax, abdomen)

Answer 2

Class Arachnida

Question 3

Antennae: Present (2)

Answer 3

Class Insecta

Question 4

Antennae: Absent

Answer 4

Class Arachnida

Question 5

Chelicerae: Absent

Answer 5

Class Insecta

Question 6

Chelicerae: Present (modified mouthparts)

Answer 6

Class Arachnida

Question 7

Wings: Present (1 or 2 pairs) in many species

Answer 7

Class Insecta

Question 8

Wings: Absent

Answer 8

Class Arachnida, Lice, Fleas

Question 9

Legs: 6 (3 pairs)

Answer 9

Class Insecta

Question 10

Legs: 8 (4 pairs)

Answer 10

Class Arachnida

Question 11

Wing Structure: Hard forewings (elytra), leathery, often fused together

Answer 11

Beetles

Question 12

Wing Structure: Membranous, often overlapping but not fused

Answer 12

True Bugs

Question 13

Mouthparts: Chewing

Answer 13

Beetles

Question 14

Mouthparts: Piercing-sucking

Answer 14

True Bugs, Mites, Ticks

Question 15

Metamorphosis: Complete/Holometabolous (egg, larva, pupa, adult)

Answer 15

Beetles, Mosquitoes, Houseflies, Butterflies

Question 16

Metamorphosis: Incomplete/Hemimetabolous (egg, nymph, adult)

Answer 16

True Bugs, Grasshoppers, Cockroaches

Question 17

Sclerites (hard plates): Hard, well-developed exoskeleton

Answer 17

Beetles

Question 18

Sclerites (hard plates): Softer exoskeleton with distinct sclerites

Answer 18

True Bugs

Question 19

Legs: 3 pairs of short, clawed legs

Answer 19

Lice

Question 20

Legs: 3 pairs of long, adapted-for-jumping legs

Answer 20

Fleas

Question 21

Eyes: Reduced or absent

Answer 21

Lice

Question 22

Eyes: Compound eyes

Answer 22

Fleas

Question 23

Antennae: Short, club-shaped

Answer 23

Lice, Fleas

Question 24

Parasitism: Permanent ectoparasites (live on host)

Answer 24

Lice

Question 25

Parasitism: Temporary ectoparasites (feed on host)

Answer 25

Fleas

Question 26

Wings: Narrow, long, covered in scales

Answer 26

Mosquitoes

Question 27

Wings: Broad, clear, with a characteristic buzzing sound

Answer 27

Flies

Question 28

Mouthparts: Long, slender proboscis for piercing and sucking

Answer 28

Mosquitoes

Question 29

Mouthparts: Short, spongy mouthparts for lapping or scraping

Answer 29

Flies

Question 30

Antennae: Feathery in males, simple in females

Answer 30

Mosquitoes

Question 31

Antennae: Short, bristle-like

Answer 31

Flies

Question 32

Resting Position: Body tilted at an angle

Answer 32

Mosquitoes

Question 33

Resting Position: Body parallel to the ground

Answer 33

Flies

Question 34

Waist: Narrow, constricted "wasp waist" (pedicel)

Answer 34

Ants

Question 35

Waist: Smooth, not constricted, broader abdomen

Answer 35

Wasps

Question 36

Wings: Membranous, front pair usually larger than back pair

Answer 36

Ants

Question 37

Wings: Membranous, all four wings are equal in size

Answer 37

Wasps

Question 38

Sociality: Often highly social, forming colonies

Answer 38

Ants

Question 39

Sociality: Mostly solitary, some are social with smaller colonies

Answer 39

Wasps

Question 40

Stinger: Present in females and queens

Answer 40

Ants

Question 41

Stinger: Present in females, used for hunting and defense

Answer 41

Wasps

Question 42

Chelicerae: Visible, fang-like mouthparts

Answer 42

Spiders

Question 43

Chelicerae: Tucked under the cephalothorax, pincer-like claws

Answer 43

Scorpions

Question 44

Eyes: 8, arranged in various patterns

Answer 44

Spiders

Question 45

Eyes: 8, simple eyes on top of cephalothorax

Answer 45

Scorpions

Question 46

Spinnerets: Present, used for producing silk

Answer 46

Spiders

Question 47

Spinnerets: Absent

Answer 47

Scorpions

Question 48

Tail: Soft, segmented abdomen; no tail with venomous stinger

Answer 48

Spiders

Question 49

Tail: Hard, segmented tail with a venomous sting at the tip

Answer 49

Scorpions

Question 50

Body size: Very small, no distinct body regions; often microscopic

Answer 50

Mites

Question 51

Body size: Larger body size (when engorged), distinct head and body regions visible to the naked eye

Answer 51

Ticks

Question 52

Legs: Four pairs (8 legs) in larvae Three pairs (6 legs) in adults

Answer 52

Mites

Question 53

Legs: Three pairs (6 legs) in all stages

Answer 53

Ticks

Question 54

Life Cycle: Simple metamorphosis (egg, larva, nymph, adult)

Answer 54

Mites

Question 55

Life Cycle: Complex metamorphosis (egg, larva, nymph, pupa, adult)

Answer 55

Ticks

Question 56

Antennae: Feathery or filamentous, thread-like, often comb-like in males

Answer 56

Moths

Question 57

Antennae: Thin, clubbed, or knobbed at the end

Answer 57

Butterflies

Question 58

Wings: Broad, often dull colors, held flat at rest

Answer 58

Moths

Question 59

Wings: Narrower, often brightly or vibrantly colored, folded vertically at rest

Answer 59

Butterflies

Question 60

Activity Time: Primarily nocturnal

Answer 60

Moths

Question 61

Activity Time: Primarily diurnal (active during the day)

Answer 61

Butterflies

Question 62

Resting Position: Wings held flat over the body; wings spread

Answer 62

Moths

Question 63

Resting Position: Wings folded vertically above the body; wings closed upright

Answer 63

Butterflies