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What is the preferred temperature range of Rattlesnake ?

Rattlesnake2.jpg
26 to 32 degree Celsius
12 to 18 degree Celsius
29 to 35 degree Celsius
16 to 20 degree Celsius


Rattlesnakes prefer a temperature range between 80 and 90°F (26-32°C), but can survive temperatures below freezing, recovering from brief exposure to temperatures as low as 4°F (-16°C), and surviving for several days in temperatures as low as 37°F (3°C).

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How many species of Rattlesnake has been found ?

20
32
40
44


There are 32 known species of rattlesnake, with between 65-70 subspecies.

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Like all pit vipers, rattlesnakes have ______ organs that can sense radiation. Fill in the blank.

One
Two
Five
Four


Like all pit vipers, rattlesnakes have two organs that can sense radiation: their eyes, and a set of heat-sensing "pits" on their face that enable them to locate prey and move towards it, based on the prey''s thermal radiation signature.

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Rattlesnake venom is a mixture of how many enzymes ?

1 to 2
5 to 10
17 to 24
5 to 15


Rattlesnake venom is a mixture of 5-15 enzymes, various metal ions, biogenic amines, lipids, free amino acids, proteins, and polypeptides.

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For how much time, the Rattlesnake venom remains stable ?

Many years
Two years
One year
5 years


The venom is very stable, and retains its toxicity for many years in storage.

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What is the body difference of male and female Rattlesnake ?

Male venom is much strong
Male has large external ear
Male have more thicker tail
Male have more thicker and longer tail


One of the differentiating features of males and females is that males have thicker and longer tails (because they contain the inverted hemipenes).

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What is the shape of Rattlesnake head ?

Circular
Rectangular
Triangular
Oval


It has a triangular-shaped head, much broader at the back than at the front, and a distinct “neck” region.

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How many species of rattlesnakes existed in Sonoran desert on April 2013 ?

5
8
13
11


The Sonoran Desert has more species of rattlesnakes (11) than anywhere else in the world.

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Rattlesnake are native to

America
Africa
Asia
Europe


They are native to the Americas, ranging from southern Alberta and southern British Columbia in Canada to Central Argentina.

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Rattlesnakes pick up vibrations through their ________

Tongue
Ears
Body muscles
Eyes


Rattlesnakes pick up vibrations through their body muscles which send sound through to their jaw bones and on to their inner ear organs.

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