AP BIOLOGY

ANIMAL PHYSIOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Snakes move by contracting muscles connected to their ribs and backbone.
A
True
B
False:Madden
C
False:nervous
D
False:Asexual
Explanation: 

Detailed explanation-1: -Snakes do not have limbs like other animals. Instead, they move using their flexible body, which consists of a long spine with up to 400 ribs attached. Muscles connected to the ribs help snakes crawl, climb, and swim, and wide belly scales help them grip surfaces.

Detailed explanation-2: -Complete answer: Snakes move using their flexible body. They have a long spine with which ribs are connected. Muscles connected to these ribs help the snake to move or crawl.

Detailed explanation-3: -Snakes do not have limbs. They move by dragging their body throughout in the form of loops. Hence, snakes have a crawling or slithering type of movement.

Detailed explanation-4: -The flexible backbone of the snake allows snake to curve its body into different loops. Every loop creates a forward push against the ground and help in the movement of snake. The flexibility of backbone is not entirely related to the movement of humans.

Detailed explanation-5: -As snakes are so flexible, it may be tempting to think that snakes have no bones. However, snakes do indeed have bones. In fact, they have hundreds – even more than us humans. Animals can be classed as either invertebrates (animals with no backbone) or vertebrates (animals with a backbone).

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