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Squamata Test

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

All Squamates share the following 3 characteristics

Back (Answer)

• Moveable quadrate bone • Cornified scales (thickened layer of hydrophobic epitheal cells) • Hemipenes (2 penises)

#2
Front (Question)

Use of the quadrate bone

Back (Answer)

Not gape limited and increases available prey species

#3
Front (Question)

Use of hemipenes

Back (Answer)

Lock & key speciation and all species have different hemipene structure

#4
Front (Question)

What are the most ancient squamates

Back (Answer)

Gekkota (geckos)

#5
Front (Question)

How did geckos evolve to have a lack of competition

Back (Answer)

evolved to be arboreal

#6
Front (Question)

Are geckos nocturnal or diurnal?

Back (Answer)

Nocturnal

#7
Front (Question)

Describe Gecko anatomy/body plan

Back (Answer)

No eyelids, toes with toe pads, specialized integument, lamella

#8
Front (Question)

What do geckos do because they don’t have eyelids

Back (Answer)

Lingual washing (lick eyeballs)

#9
Front (Question)

How do lamella work for geckos

Back (Answer)

Generate static electricity to bond to a surface

#10
Front (Question)

3 subfamilies of geckos

Back (Answer)

• Eublepharidae (eyelid geckos) • Geckonidae (True geckos) • Diplodactylidae (Bent toe geckos)

#11
Front (Question)

What is Toxicofera

Back (Answer)

Major taxonomic clade/group in Squamata known as the “venom clade”

#12
Front (Question)

What do members of Toxicofera produce

Back (Answer)

Produce peptides (active portion of enzyme) in glands

#13
Front (Question)

What is Toxicofera supported by

Back (Answer)

Physiology and genetics

#14
Front (Question)

What was a fundamental idea that Toxicofera implemented

Back (Answer)

Redefined what a venomous reptile is

#15
Front (Question)

What animal is in Suborder Sclerglossa

Back (Answer)

Mosasaurs

#16
Front (Question)

Describe Mosasaurs

Back (Answer)

Not as large as Pliosaurs, long laterally flattened tails, cusp like teeth for crushing, extinct by the end of the Cretaceous

#17
Front (Question)

2 sizes of niche partitioning in Mosasaurs

Back (Answer)

• Macro & micro form

#18
Front (Question)

Main feature of Mosasaur head

Back (Answer)

Big quadrate bone, could open gape to about 180 degrees

#19
Front (Question)

Describe Mosasaur teeth

Back (Answer)

Jugal teeth; if prey started to struggle they would die

#20
Front (Question)

What is different about a serpentes quadrate bone

Back (Answer)

Has ligaments that attach to the top of the skull and mandible making it fully functioning (10x larger gape); 2 jaw bones to spread jaw laterally

#21
Front (Question)

2 hypotheses of snake origin

Back (Answer)

• Fossorial • Mosasaur

#22
Front (Question)

Genus of milk and king snakes

Back (Answer)

Lampropeltis spp.

#23
Front (Question)

2 species complexes of Lampropeltis

Back (Answer)

• Lampropeltis getula (Kings) • Lampropeltis triangulum (Milk)

#24
Front (Question)

Lampropeltis getula

Back (Answer)

Kingsnakes: coloration based on geographic region, eat other snakes, ultimate generalist