A hormone called ________ plays an important role in incubating a special group of white blood cells.

A) cortisol
B) thymosin
C) glucagon
D) melatonin


Answer: B) thymosin

Anatomy & Physiology

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During which process do DNA strands unwind and DNA polymerase begin attaching complementary DNA nucleotides along each strand?

A) replication B) mitosis C) transcription D) mutation E) translation

Anatomy & Physiology

Asthma is a respiratory disorder characterized by construction of airways and mucus production which makes it very difficult to breathe. The constriction of airways, mucus production and altered gene expression in the cells lining the airways of asthmatics is due to increased release of neurotransmitter acetylcholine. Explain how a single molecule can have such a large and diverse effect in a

single cell. What will be an ideal response?

Anatomy & Physiology

True flight first arose in

A) Bats. B) Birds. C) Insects. D) Reptiles.

Anatomy & Physiology

Answer the following statements true (T) or false (F)

1) Cells located in the stratum spinosum manufacture keratin. 2) Langerhans' cells are located in the stratum spinosum. 3) The stratum lucidum is found only in thick skin. 4) The stratum basale makes up the dead surface cells. 5) Stem cells divide within the stratum basale.

Anatomy & Physiology