In humans, separation of the cells at the two-cell state following fertilization may lead to the production of twins, which in this case would be ________.

A) dizygotic
B) identical
C) fraternal
D) of different sexes


B) identical

Anatomy & Physiology

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All MRI contrast agents are paramagnetic or superparamagnetic.  

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

Anatomy & Physiology

________ hormones bind with an intracellular receptor to form a ________, which activates specific genes.

A. Nonsteroid; DNA-mRNA complex B. Nonsteroid; receptor-hormone complex C. Steroid and thyroid; DNA-mRNA complex D. Steroid and thyroid; receptor-hormone complex

Anatomy & Physiology

The specialized vessels that carry blood containing releasing hormones from the brain to their target gland make up the

A. hypothalamus-pituitary portal system. B. circle of Willis. C. common jugular veins. D. hepatic portal system. E. adrenal regulatory pathway.

Anatomy & Physiology

Factors that impact stroke volume and cardiac output include ____________________.

ion concentration hormone concentrations autonomic activity all choices are correct none of the choices are correct

Anatomy & Physiology