If You Rub the Scaled Skin of a Shark,it Feels

question 16

Multiple Choice

If you rub the scaled skin of a shark,it feels rough if you move your hand from tail to head but smooth if you move from head to tail.What is a major advantage of the scales being oriented this way?

• A)to counteract friction as the shark swims through the water
• B)to keep the shark afloat in the water
• C)to better protect the shark from predators
• D)to better prevent water loss from the body tissues
• E)to enable the shark to orient itself in space and detect prey

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Definitions:

Intellectual Development

The progression of cognitive abilities and thinking skills throughout a person's life, including reasoning, problem-solving, and understanding complex concepts.

Fraternal Twins

Twins that develop from two different eggs fertilized by two different sperm, resulting in siblings that are genetically unique from each other.

Heritability

A measure of how much of the variation in a trait within a population can be attributed to genetic differences among individuals.

Intelligence

The ability to learn from experience, solve problems, and use knowledge to adapt to new situations.