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Zoology Lecture Unit 4 > Reptilia continued > Flashcards

Reptilia continued Flashcards

1
Q

Reptiles

What are their feeding mechanisms?

A

Carnivores, herbivores or, both

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2
Q

Reptiles

Who has sticky tongues?

A

Chameleons

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3
Q

Reptiles

Venom means it is

A

Injected

Some reptiles are venomous

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4
Q

Reptiles

Why are young snakes more likely to use venom?

A

They dont have control that older snakes have

Dont know Venom is expensive to make

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5
Q

Reptiles

What kind of jaws do snakes have?

A

Detachable

4 jaws

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6
Q

Reptiles

How do they regulate their temperature?

A

Ectotherms

Basking

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7
Q

Reptile Vision

In Serpentes vision is a ___-derived trait

A

Secondarily derived

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8
Q

Reptile Vision

Sauria: Power and color?

A

Very good vision

Color vision in many

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9
Q

Reptile Vision

3rd eye name?

A

Pineal eye

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10
Q

Reptile Vision

What does the pineal eye sense?

A

light / dark

Translates to day length

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11
Q

Reptile Vision

Longer days =

A

Summer

Time to reproduce

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12
Q

Reptile Vision

Shorter days =

A

Winter

Shelter / hibernation

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13
Q

Reptile Senses

What is Circadian rhythm?

A

Timing of life’s events

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14
Q

Reptile Senses

Zeitgeber purpose

A

External stimuli that help set circadian rhythm

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15
Q

Reptile Senses

Who doesn’t have a tympanum?

A

Serpentes

Many others have great hearing with tympanum

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16
Q

Reptile Senses

Who has Jacobson’s organ and what does it do?

A

Squamata

Can smell left and right

17
Q

Reptile Senses
Infrared Radiation
Pit organ purpose?
Sensitivity?

A 
Form images (heat vision)
Sensitive to 0.001 degrees celsius
18
Q

Reptile Excretion

What organ do they have and what does it produce?

A

Kidneys

Produce uric acid for water conservation

19
Q

Reptile Reproduction

Monoecious or dioecious?

A

Dioecious

20
Q

Reptile Reproduction

Parthenogenic?

A

Very rarely parthenogenic

21
Q

Reptile Reproduction

Internal or external fertilization?

A

Internal fertilization

22
Q

Reptile Reproduction: Amniotic eggs

What are the 4 membranes?

A
  1. Allantois
  2. Yolk sac
  3. Amnion
  4. Chorion
23
Q

Reptile Reproduction: Amniotic eggs

Allantois purpose?

A

Stores metabolic wastes

24
Q

Reptile Reproduction: Amniotic eggs

Yolk sac purpose?

A

Stores nutrients

25
Q

Reptile Reproduction: Amniotic eggs
Amnion purpose?

(3)

A

Surrounds the embryo
Protects from drying out
Protects from physical shock

26
Q

Reptile Reproduction: Amniotic eggs

Chorion purpose?

A

lines shell - allows for gas exchange

Zoology Lecture Unit 4 (5 decks)

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