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Questions and Answers
What is the definition of a snake?
What is the definition of a snake?
Any of numerous limbless, scaly, elongated reptiles of the suborder Serpentes, comprising venomous and nonvenomous species.
Match the classification of a snake:
Match the classification of a snake:
Kingdom = Animalia Phylum = Chordata Class = Reptilia Order = Squamata Suborder = Serpentes
What does the order Squamata include?
What does the order Squamata include?
Lizards and 95% of all reptiles.
It is believed that snakes evolve from ______.
It is believed that snakes evolve from ______.
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What is a male snake called?
What is a male snake called?
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What is a female snake called?
What is a female snake called?
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What are newly born (live birth) snakes called?
What are newly born (live birth) snakes called?
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What are newly hatched snakes called?
What are newly hatched snakes called?
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What are young snakes called?
What are young snakes called?
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What are some names for a group of snakes?
What are some names for a group of snakes?
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What are some differences between snakes and legless lizards?
What are some differences between snakes and legless lizards?
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What is the heaviest snake?
What is the heaviest snake?
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What is the Titanoboa?
What is the Titanoboa?
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Where are sea snakes found?
Where are sea snakes found?
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Where are terrestrial snakes NOT found?
Where are terrestrial snakes NOT found?
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How many species of snakes are there?
How many species of snakes are there?
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How many snake species are venomous?
How many snake species are venomous?
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How many venomous snakes can kill or seriously wound a human?
How many venomous snakes can kill or seriously wound a human?
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What is the only snake that can live in cold environments?
What is the only snake that can live in cold environments?
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How many snake species in the US are venomous?
How many snake species in the US are venomous?
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What is the only state that doesn't have at least 1 species of a venomous snake?
What is the only state that doesn't have at least 1 species of a venomous snake?
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How many snake species do we have in CT?
How many snake species do we have in CT?
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How many snake species in CT are venomous and what are they?
How many snake species in CT are venomous and what are they?
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What is the definition of ectotherm?
What is the definition of ectotherm?
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What are some things that can control an ectotherm's body temperature?
What are some things that can control an ectotherm's body temperature?
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What is the definition of endotherm?
What is the definition of endotherm?
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How much more will ectotherms eat than an endotherm of the same size?
How much more will ectotherms eat than an endotherm of the same size?
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What behavioral adaptations do ectotherms have?
What behavioral adaptations do ectotherms have?
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What is hypothermia?
What is hypothermia?
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What is vasoconstriction?
What is vasoconstriction?
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What is a metabolic process?
What is a metabolic process?
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What is a hibernaculum?
What is a hibernaculum?
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What is hyperthermia?
What is hyperthermia?
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What is aestivation?
What is aestivation?
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What is vasodilation?
What is vasodilation?
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Why do ectotherms require more food when it is warm?
Why do ectotherms require more food when it is warm?
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Overall, ectotherms have (lower/higher) metabolic rates when compared to endotherms.
Overall, ectotherms have (lower/higher) metabolic rates when compared to endotherms.
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Why do ectotherms have lower metabolic rates?
Why do ectotherms have lower metabolic rates?
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How long does a snake usually go without eating?
How long does a snake usually go without eating?
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What internal clocks do snakes follow?
What internal clocks do snakes follow?
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What does it mean to be nocturnal?
What does it mean to be nocturnal?
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What does it mean to be crepuscular?
What does it mean to be crepuscular?
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How do nonvenomous snakes kill prey?
How do nonvenomous snakes kill prey?
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Do constrictors have teeth?
Do constrictors have teeth?
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What two adaptations allow snakes to open their mouths abnormally wide?
What two adaptations allow snakes to open their mouths abnormally wide?
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What is the mobile quadrate bone?
What is the mobile quadrate bone?
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What is the split lower jaw?
What is the split lower jaw?
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How should you measure how big of food to give your snake?
How should you measure how big of food to give your snake?
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Describe the process of a snake eating its prey.
Describe the process of a snake eating its prey.
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How long does it take for a snake to digest food?
How long does it take for a snake to digest food?
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What is scale spreading?
What is scale spreading?
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What does obesity look like in snakes?
What does obesity look like in snakes?
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How should snakes feel?
How should snakes feel?
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Do snakes have good hearing?
Do snakes have good hearing?
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What are snake ears like?
What are snake ears like?
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What is the snake's inner ear filled with, and what does this allow the snake to do?
What is the snake's inner ear filled with, and what does this allow the snake to do?
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What allows snakes to 'see' in the dark?
What allows snakes to 'see' in the dark?
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What is the scale that covers a snake's eye called?
What is the scale that covers a snake's eye called?
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What are some adaptations of snakes?
What are some adaptations of snakes?
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What do snakes use to smell?
What do snakes use to smell?
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What is a snake's most relied-on sense?
What is a snake's most relied-on sense?
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What allows snakes to collect odor particles?
What allows snakes to collect odor particles?
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What is Jacobson's organ?
What is Jacobson's organ?
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What is integumentary?
What is integumentary?
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What are scales?
What are scales?
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What is ecdysis?
What is ecdysis?
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Why do snakes shed their skin?
Why do snakes shed their skin?
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What allows snakes to shed their skin?
What allows snakes to shed their skin?
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What does the new skin oil attract?
What does the new skin oil attract?
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What makes up the rattle on a rattlesnake?
What makes up the rattle on a rattlesnake?
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What is the oldest part of the rattle called?
What is the oldest part of the rattle called?
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You can determine a snake's age based on the size/length of the rattle.
You can determine a snake's age based on the size/length of the rattle.
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What are some disadvantages of ectotherms?
What are some disadvantages of ectotherms?
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What are some advantages of ectotherms?
What are some advantages of ectotherms?
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Study Notes
Snake Definition and Classification
- Snakes are limbless, scaly reptiles from the suborder Serpentes, which includes venomous and nonvenomous species.
- Classification hierarchy: Kingdom Animalia, Phylum Chordata, Class Reptilia, Order Squamata, Suborder Serpentes.
- The order Squamata includes lizards and 95% of all reptiles.
Reproductive Terms and Young Snakes
- Male snakes are referred to simply as "male" while females are "female."
- Newly born snakes are called "neolates," while newly hatched snakes are known as "hatchlings."
- Young snakes are termed "snakelets."
Group Terminology
- A group of snakes can be called a den, bed, pit, or nest.
Snake Adaptations and Characteristics
- Snakes differ from legless lizards: snakes have complete belly scales, forked tongues, and ears inside the body; legless lizards have divided belly scales, no forked tongues, and external ears.
- The Green Anaconda is the heaviest snake, growing over 29 feet, weighing over 550 lbs, and measuring 12 inches in diameter.
- Titanoboa, an extinct species, could reach lengths of 40-43 feet.
Habitat and Distribution
- Sea snakes inhabit the Indian and Pacific Oceans and waters around Florida.
- Terrestrial snakes are absent from Antarctica, Iceland, Ireland, Greenland, and New Zealand.
- There are approximately 3,600 snake species worldwide, with 600 being venomous.
Venomous Snakes
- 200 venomous species can kill or seriously injure humans.
- 20 venomous snake species are found in the United States, with Alaska being the only state without a venomous species.
- Connecticut has 14 snake species, including two venomous: Timber rattlesnake and Copperhead.
Ectothermic Characteristics
- Ectotherms rely on external environmental conditions for body temperature regulation, making them "cold-blooded."
- They utilize sunlight, water, air, and heat lamps for temperature control.
- Ectotherms require five times more food than endotherms of the same size due to their lower metabolic rate.
Behavioral and Physiological Adaptations
- Ectothermic adaptations include movement to shelters, basking, and hibernaculum—a rare gathering of snakes.
- Hypothermia occurs when body temperature drops too low, while hyperthermia results from overheating.
- Vasoconstriction occurs to retain body heat, while vasodilation helps cool the body by increasing blood flow to the skin.
Feeding and Digestion
- Snakes can go 1-2 weeks without food, with some surviving up to six months.
- Snakes primarily follow nocturnal (active at night) or crepuscular (active at dawn/dusk) patterns.
- Nonvenomous snakes kill prey by swallowing them alive or constricting them.
Sensory Adaptations
- Snakes have poor hearing, relying on internal ear structures to detect motion and vibrations.
- Pit organs enable snakes to sense heat from warm bodies, enhancing their hunting ability in the dark.
- Jacobson's organ decodes odor particles, allowing snakes to smell using their moist tongues.
Skin and Shedding
- Snakes have keratin-filled scales that prevent water loss, with all scales present at birth.
- Ecdysis refers to the shedding of skin, which occurs as snakes grow, facilitated by oil production.
- The rattle of a rattlesnake is made of hollow, interlocked segments, with the oldest part called the birth button.
Advantages and Disadvantages of Ectothermy
- Ectotherms benefit from having lower metabolic rates and conserving energy as they do not need to regulate body temperature actively.
- Disadvantages include risks of hypothermia, hyperthermia, and dependence on the environment for temperature control.
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Test your knowledge about snakes with these flashcards. Explore definitions, classifications, and their relation to other reptiles. Perfect for anyone interested in herpetology or general biology.