In general, ________ have a 2:1 ratio of hydrogen to oxygen.

A. nucleic acids
B. carbohydrates
C. proteins
D. lipids
E. enzymes


Answer: B

Anatomy & Physiology

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Which class of antibodies is mainly found in sweat, tears, breast milk and GI secretions?

a) IgG b) IgA c) IgM d) IgD e) IgE

Anatomy & Physiology

Which of the following is NOT true of the brachial plexus?

A. It is mainly derived from spinal nerves C5-C8, and T1. B. It gives rise to the musculocutaneous, axillary, radial, median and ulnar nerves. C. Its nerves control the shoulder and upper limb muscles. D. It contains the phrenic nerve and  the ansa cervicalis. E. All of these are true of the brachial plexus.

Anatomy & Physiology

________ is the period of time when the cell is not dividing

A) Anaphase B) Prophase C) Interphase D) Metaphase

Anatomy & Physiology

The placenta is usually functioning to deliver nutrients and oxygen to, and remove waste from, the embryonic blood by the ________ week of pregnancy

A) first B) second C) third D) fourth E) fifth

Anatomy & Physiology