The Sacroiliac joint is the appendicular joint that firmly attaches the axial skeleton to the pelvic girdle. The Sacroiliac joint or SI joint is the joint between the Sacrum (large, triangular bone at the base of the spine) and Ilium (largest part of the hip bone) bones of the pelvis, which are connected by strong ligaments.
The use of the isotope 32P as a tracer element in the study of invasion and lysis of bacteria by viruses has shown that bacteriophage protein enters the bacteria.
Phosphorus-32 is a radioactive isotope of phosphorus, such that the nucleus of phosphorous-32 contains 15 protons and 17 neutrons, one more neutron than the most common isotope of phosphorous, phosphorous-31.
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Half of the Moon's surface is always illuminated by direct sunlight, except during lunar eclipses when Earth casts its shadow on the Moon. Just how much of that light we can see from Earth varies every day, and we refer to this as a Moon phase.
Orbits: Earth
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