Not All Sponges Have Skeletons

question 43

Multiple Choice

Not all sponges have skeletons. If they do, their skeletons may be made of:

• A)silica.
• B)calcium carbonate.
• C)bone.
• D)protein.
• E)carbohydrate.

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Definitions:

Intellectual Disability

A disability characterized by significant limitations in both intellectual functioning and in adaptive behavior, which covers a range of everyday social and practical skills.

Mental Retardation

An outdated and insensitive term formally used to describe people with significantly below-average intellectual functioning and adaptive behaviors, now more appropriately called intellectual disability.

Elementary Education

The first stage of formal education, covering basic reading, writing, arithmetic, and social skills typically provided to young children.

Dyslexia

A learning disorder characterized by difficulties with accurate and/or fluent word recognition, poor spelling and decoding abilities, often due to a deficit in the phonological component of language.