Which thyroid hormone is used to treat osteoporosis?
A) calcitonin B) insulin
C) testosterone D) parathyroid hormone
Question 2
Cells regulate the osmotic pressure between their internal and external environments by
A) drinking in fluid via pinocytosis or expelling fluid via exocytosis.
B) transmitting signals to the hypothalamic thirst mechanism prompting us to drink.
C) using transport proteins to pump electrolytes across the cell membrane.
D) allowing passive diffusion of sodium and potassium across the cell membrane.