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The metatarsophalangeal joints allow movement in two planes and are classified as _________ joints.

The glossy-white appearance of most axons is due to

The sodium level inside and outside of a resting cell is an example of the

Mechanical stress of bones, such as that caused by weight lifting, is detected by

Before beginning orthodontic treatment, a patient may have her wrist and hand x-rayed to determine her stage of growth. What feature of the long bones will the orthodontist use to assess this?

Which statement accurately describes amino acids?

One function of the brain’s frontal lobe is

Which statement accurately compares the transmission speed of the different types of synapses?

Phospholipids are described as

An element’s atomic number is determined by the number of __________ in one atom of that element.