Which of the following hormones stimulate osteoblasts to form bone?
A. parathyroid hormone
B. growth hormone
C. erythropoietin
D. sex hormones
E. Both growth and sex hormones
Answer: E
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Adult T-cell leukemia is thought to be caused by
A. parvoviruses. B. herpesviruses. C. picornaviruses. D. retroviruses.
Over evolutionary time, photosynthesis has effectively poisoned itself by producing an oxygenic atmosphere because __________
A. rubisco is an oxygenase B. rubisco is a carboxylase C. O2 is a strong oxidant D. rubisco is an oxygenase and O2 is a strong oxidant E. rubisco is an oxygenase and O2 is a strong reductant
For increased atmospheric pressure, the boiling temperature of a liquid
What will be an ideal response?
Process in a cell that involves the passage of electrons along a series of membrane-bound electron carrier molecules from a higher to lower energy level; the energy released is used for the synthesis of ATP.
What will be an ideal response?