Which is true about the composition of organic molecules?
A. They always contain oxygen.
B. They always contain carbon.
C. They are always macromolecules.
D. They never contain hydrogen.
E. They never contain oxygen.
B
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Answer the following statement true (T) or false (F)
At the end of a hair's growth cycle, the follicle does which of the following?
A) becomes smaller B) sloughs off the old hair when the cycle begins again C) becomes inactive D) loses connection to the hair matrix E) All of the answers are correct.
What causes osteoporosis?
Osteoclasts out-pace osteoblasts due to low hormone production of the ovaries. heritage such as African or Mediterranean abnormal PTH receptors poor posture
Lethal genes can cause death at any time during the human life cycle, from the zygote stage to a mature adult human being.?
Indicate whether the statement is true or false