Chelicerata

Question 1

Chelicerata

Answer 1

Spiders, ticks, mites, scorpions, horseshoe crabs

Question 2

___ pairs of walking legs

Answer 2

4

Question 3

2 segments:

Answer 3

Cephalothorax, Abdomen

Question 4

Respiration via ___ or ___

Answer 4

Book lungs, Book gills

Question 5

2 pairs of appendages at the mouth

Answer 5

Chelicerae, Pedipalps

Question 6

__ Antennae

Answer 6

No

Question 7

3 Extant classes

Answer 7

Xiphosurida, Pycnogonida, Arachnida

Question 8

Xiphosurida

Answer 8

Horseshoe crabs

Question 9

___, horseshoe shaped carapace with a long tailpiece called a ___

Answer 9

Unsegmented, Telson

Question 10

___ pairs of walking legs and ___ pairs of abdominal appendages for ___

Answer 10

4, 6, swimming

Question 11

Xiphosurida respire with ___

Answer 11

Book gills

Question 12

Xiphosurida are __ for hundreds of millions of years

Answer 12

mostly unchanged

Question 13

Only __ Xiphosurida genera survive today

Answer 13

3

Question 14

Arachnida

Answer 14

Class of scorpions, ticks, and spiders

Question 15

Arachnida breath with ___

Answer 15

Book lungs

Question 16

Most Arachnida are ___

Answer 16

Predatory, Contain venom glands and stingers

Question 17

Arachnida chelicerae modified into ___

Answer 17

Fangs

Question 18

Order Aranae

Answer 18

Spiders

Question 19

Araneae Chelicerae have ___

Answer 19

Terminal fangs connected to venom glands

Question 20

Araneae are all ___

Answer 20

Predatory

Question 21

Araneae respire via ___ or ___, some have both

Answer 21

Lungs, Tracheae

Question 22

Araneae have an excretory system composed of ___

Answer 22

Malpighian tubules

Question 23

Only __ have Malpighian tubules

Answer 23

Spiders and insects

Question 24

Spiders have the ability to ___

Answer 24

Spin silk

Question 25

2-3 pairs of ___ run to abdominal ___

Answer 25

Spinnerets, silk glands

Question 26

Spider silk is stronger than ___ threads of the same diameter

Answer 26

Steel

Question 27

___ of the silk makes it strong

Answer 27

Nanostructure

Question 28

Web __ varies across species

Answer 28

Shape

Question 29

Silk threads are useful for other purposes

Answer 29

Wrapping prey, lining nests

Question 30

Most spiders are ___ to humans

Answer 30

Harmless

Question 31

Venomous spiders typically ___

Answer 31

Only bite to defend themselves or their young

Question 32

Spiders eat ___

Answer 32

insect pests

Question 33

Some spiders are highly venomous

Answer 33

Black widow, Brown recluse, Funnel web

Question 34

Order Scorpiones

Answer 34

Scorpiones

Question 35

Scorprions have ___ tagmata

Answer 35

3: Cephalothorax, Preabdomen, Postabdomen

Question 36

Final segment of ___ modified into a stinger in scorpions

Answer 36

Postabdomen

Question 37

Order Acari

Answer 37

Ticks and mites

Question 38

Cephalothorax and abdomen are ___ in Acari

Answer 38

Completely fused

Question 39

Many ticks and mites have ___

Answer 39

Direct effects on health and food supply

Question 40

Demodex

Answer 40

mange in dogs and cats

Question 41

Ixodes

Answer 41

Carrier of Lyme disease

Question 42

Sarcoptes Scabiei

Answer 42

Causes scabies

Question 43

Myriapodia

Answer 43

Centipedes and milipedes

Question 44

Myriapoda has numerous legs

Answer 44

~ 10 to 750

Question 45

Myriapoda have ___ tagmata

Answer 45

2: Head and Trunk

Question 46

Most or all trunk segments in Myriapods have ___

Answer 46

Paired appendages

Question 47

Myriapods are ___ and they prefer a ___ environment

Answer 47

Terrestrial, humid

Question 48

Myriapods can be found in

Answer 48

Moist soils, decaying biomass, and lead litter

Question 49

2 classes of myriapods:

Answer 49

Chilopoda (centipedes) Diplopoda (milipedes)

Question 50

Chilopoda are somewhat ___

Answer 50

flattened

Question 51

Chilopoda prefer ___

Answer 51

moist places; under logs, bark, stones, or damp areas in houses

Question 52

All Chilopoda are ___

Answer 52

Carnivorous; They rely on venom to kill prey and most are harmless to humans

Question 53

Chilopoda have ___ legs per trunk segment

Answer 53

On pair

Question 54

Diplopoda are ___ bodied

Answer 54

Cylindrical

Question 55

Diplopoda are ___

Answer 55

Herbivorous

Question 56

Most Diplopoda feed on ___

Answer 56

Decaying plants, some feed on living plants

Question 57

Each Diplopoda trunk segment has ___

Answer 57

2 pairs of legs