What type of hormones enter their target cells, bind with a receptor protein, penetrate the nucleus, and influence the transcription of genes?
A) steroid hormones
B) peptide hormones
C) both of the above
D) none of the above
Ans: A) steroid hormones
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A. vasodilation and decreased urine output from the kidneys. B. vasodilation and increased urine output from the kidneys. C. vasoconstriction and increased urine output from the kidneys. D. vasoconstriction and decreased urine output from the kidneys.
What prevents acid from backing up into the esophagus from the stomach?
A. Pyloric sphincter B. Rugae C. Adventitia D. Lower esophageal sphincter
What is the function of the middle cerebellar peduncles?
A. They contain neurons that produce dopamine. B. They carry signals between the cerebellum and the medulla oblongata. C. They carry signals between the cerebellum and pons. D. They carry signals between the cerebellum and midbrain. E. They contain neurons that monitor body position and movement.
Which of the following is the primary tissue type that contracts?
A) connective tissue B) epithelial tissue C) neural tissue D) muscle tissue E) germinative tissue