Which of the Following Are Entirely, or Partly, Composed of Calcium

question 17

Multiple Choice

Which of the following are entirely, or partly, composed of calcium carbonate?

• A) spicules of siliceous sponges
• B) coral animals' exoskeletons
• C) molluscs' mantles
• D) insects' cuticles
• E) nematodes' cuticles

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Definitions:

Cognitive Deficits

Shortcomings or impairments in cognitive functions such as memory, attention, and problem-solving abilities.

Emotional Deficits

A lack or shortage in the ability to comprehend, perceive, or express emotions in a healthy way.

Health Problems

refer to any condition that affects an individual's physical or mental well-being, ranging from minor to serious conditions.

Myelinization

The process of coating the axons of neurons with myelin, a fatty substance that speeds up signal transmission.