What Replaces the Notochord in Most Vertebrates

question 24

Multiple Choice

What replaces the notochord in most vertebrates?

• A)nothing
• B)the dorsal nerve cord
• C)a solid rod of calcium
• D)thickened skin
• E)vertebrae

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Definitions:

Fluid Intelligence

The capacity for deductive reasoning and the ability to use new information to solve problems; it is relatively independent of education and tends to decline in old age.

Intellectual Abilities

Refers to the mental capacities that allow individuals to learn, reason, solve problems, and adapt to new situations.

Arithmetic

A branch of mathematics dealing with the properties and manipulation of numbers.

Jean Piaget

A Swiss psychologist known for his pioneering work in child development, particularly his theory of cognitive development that describes how children construct a mental model of the world.