Second messengers are important in the functioning of:

a. nonsteroid hormones
b. steroid hormones
c. carbohydrate hormones
d. both B and C above


a. nonsteroid hormones

Anatomy & Physiology

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The production of platelets is called _______________

Fill in the blank with correct word.

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Pulmonary circulation involves blood flow to and from the heart and the ________

A) body B) digestive organs C) skin D) lungs E) brain

Anatomy & Physiology

The last segment of the small intestines is the

A. pylorus. B. duodenum. C. ileum. D. jejunum. E. ilium.

Anatomy & Physiology

DNA molecules are in the nucleus

A. complexed with protein, forming chromatin fibers. B. complexed with protein, forming nucleoli. C. complexed with protein on the nuclear envelope. D. as free molecules.

Anatomy & Physiology