What Factors Are Most Important in Determining Which Elements Are

question 35

Multiple Choice

What factors are most important in determining which elements are most common in living matter?

• A) the relative abundances of the elements in Earth's crust and atmosphere
• B) the emergent properties of the simple compounds made from these elements
• C) the reactivity of the elements with water
• D) the chemical stability of the elements
• E) both the relative abundances of the elements and the emergent properties of the compounds made from these elements

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Definitions:

Sternocleidomastoid

A muscle in the neck that runs from the sternum and clavicle to the mastoid process of the temporal bone, involved in facilitating rotation and flexion of the neck.

Semispinalis Capitis

is a muscle of the back located beneath the trapezius, playing a key role in extending, rotating, and bending the head backwards.

Splenius Capitis

A muscle located in the back of the neck that functions in extending and rotating the head.

Mastication

The process of chewing food in preparation for swallowing and digestion.