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Author Question: The solid matter in bone is known as: A) cancellous tissue. B) marrow. C) osteoblasts. D) ... (Read 121 times) |
Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
Vaccines prevent between 2.5 and 4 million deaths every year.
Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.