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Zoology > Class Reptilia Classification > Flashcards

Class Reptilia Classification Flashcards

1
Q

Order Sphenodontia

A

tuataras

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2
Q

How many species in order Sphenodontia? Where?

A

2, New Zeland

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3
Q

What is the oldest living, nearly extinct order?

A

Sphenodontia

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4
Q

What does Sphenodontia feed on?

A

insects

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5
Q

what is special about Order Sphenodontia?

A

they have a parietal eye

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6
Q

parietal eye

A

“third eye”, middle of forehead, can detect light/dark

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7
Q

Order Testudines

A

turtles and tortoises

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8
Q

How many species in testudines

A

300

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9
Q

carapace

A

dorsal shell, made of bone

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10
Q

plastron

A

ventral shell, helps form girdles

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11
Q

how many shells does order Testudines have

A

2, carapace and plastron

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12
Q

why are testudines slow?

A

their shells inhibit movement

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13
Q

scutes

A

what covers testudines shells

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14
Q

do testudines have teeth

A

no, just a beak like structure

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15
Q

how long can a Galapagos tortoise live

A

100-200 years

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16
Q

turtle characteristics (4)

A

live in/near water; flat, streamlined shell; paddle like legs; omnivores

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17
Q

tortoise characteristics (4)

A

live on dry land; high domed shell; short, stumpy legs; herbivores

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18
Q

Order Squamata

A

snakes and lizards

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19
Q

how many species in order squamata

A

7,675 species

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20
Q

percentage of all reptiles in this order

A

Squamata

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21
Q

Suborder Serpentes

A

snakes

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22
Q

number of species in serpentes

A

3000

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23
Q

number of species in sauria

A

l4,675

24
Q

Suborder Sauria

A

lizards

25
Q

2 categories of serpentes

A

nonvenomous and venomous

26
Q

examples of non venomous snakes

A

most snakes, black racer, indigo snake

27
Q

how do most non venomous snakes kill their prey

A

hold prey against ground, swallow alive and eat

28
Q

how to nonvenomous constrictor snakes kill their prey

A

squeezing and suffocating

29
Q

examples of constrictor snakes

A

boa constrictor, python, anaconda, king snake, rat snake

30
Q

how many snakes are venomous? (%)

A

less than 20%

31
Q

how do venomous snakes kill their prey

A

injecting w/ venom through fangs

32
Q

fangs characteristics (4)

A

front of mouth, large, hollow, curved

33
Q

what toxins to venomous snakes have (2)

A

hemotoxin and neurotoxin

34
Q

hemotoxin

A

blood

35
Q

neurotoxin

A

interferes w/ nervous system functions

36
Q

pit viper major characteristic

A

have deep pits on the side of its head that detects heat of warm blooded prey

37
Q

shared characteristics of lizards and snakes (2)

A

kinetic skill and Jacobson’s organ

38
Q

Jacobson’s organ

A

use flicking of tongue to pick up chemicals in air before running tongue along Jacobson’s Organ to detect specific smells

39
Q

kinetic skull

A

joints in skull are flexible and allow for expansive movement to eat large prey; while swallowing large prey, glottis is moved between separation of mandible

40
Q

glottis

A

opening of windpipe

41
Q

Sauria characteristics (4)

A

4 legs, moveable eye lids, internal ear openings, some have detachable tails

42
Q

Order Crocodylia

A

crocodiles, camens, alligators

43
Q

how many species in Crocodylia

A

23

44
Q

what does crocodylia eat

A

use strong jaw and sharp teeth to eat birds, fish, mammals, turtles

45
Q

crocodylia skin

A

thick, covered by hard scales

46
Q

crocodylia heart

A

4 chambers: 2 atria, 2 ventricles

47
Q

how fast can crocodylia run

A

up to 10 mph

48
Q

where are crocodylia eggs laid

A

in the ground, adult stays near to guard them

49
Q

higher temp of crocodylia eggs produce

A

males

50
Q

lower temp of crocodylia eggs produce

A

females

51
Q

use of powerful crocodile tail (2)

A

quick swimming, weapon on land

52
Q

how many crocodile species

A

14

53
Q

where do crocodiles live

A

tropics, everglades, florida

54
Q

crocodile nose shape

A

narrow, tapered snout

55
Q

where do alligators live

A

southeast US and china

56
Q

how many species of alligators

A

2

57
Q
A

Zoology (6 decks)

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