nebula
The precursor of basophils is the basophil progenitor cell, the precursor of monoblasts is the monoblast cell, the precursor of lymphoblasts is the lymphoblast cell, the precursor of megakaryoblasts is the megakaryoblast cell, and the precursor of myeloblasts is the myeloblast cell. These precursor cells undergo differentiation and maturation processes to become fully functional mature blood cells.
A neutron star or a pulsar, or a black hole.
I believe nothing, since Polaris is the North Star and remains fixed as everything else rotates around it!
A star, after using all of it's fuel explodes. We call this a super nova, and after this the star will either become a black dwarf star (or maybe a white dwarf) or it will collapse in on its self creating a black hole.
The usual way a black hole forms is the following. A massive star ends its life in a huge supernova explosion. After that, the star runs out of fuel and collapses, due to its gravity. Actually, any star will collapse, whether it became a supernova or not. A supernova explosion can blow off much of a star's mass into space; in some cases, the star can blow up completely, leaving no remains. In any case, depending on how much mass remains once the star runs out of fuel, what remains will collapse into a white dwarf, a neutron star, possibly a quark star (quark stars are still very hypothetical), or a black hole. The most massive stars become black holes.
nebula
A nebula can be a precursor to a star, where gas and dust are slowly collapsing to form a new star. Stellar remnants, like white dwarfs, neutron stars, and black holes, are what remains after a star has gone through its life cycle and exhausted its nuclear fuel.
The small dense remains of a high mass star are either a neutron star or a black hole, depending on the mass of the original star. Neutron stars are formed from the core collapse of a massive star and are incredibly dense, composed mainly of neutrons. Black holes are formed when the core collapse results in a singularity with infinite density and a gravitational pull so strong that not even light can escape.
A T Tauri star is sort of a precursor of a star, or about to become a "real" star. Therefore, it can last anywhere from a few million to several trillion years before it runs out of energy, depending on its mass.
Precursor
ARPNET is the precursor of the modern Internet.ARPNET is the precursor of the modern Internet.ARPNET is the precursor of the modern Internet.ARPNET is the precursor of the modern Internet.
A neutron star is already the remains of a massive star that has run out of fuel.
The nebula that remains after it blows up.
A White Dwarf Star remains.
Neutron star
it is both the morning star & evening star
The precursor of basophils is the basophil progenitor cell, the precursor of monoblasts is the monoblast cell, the precursor of lymphoblasts is the lymphoblast cell, the precursor of megakaryoblasts is the megakaryoblast cell, and the precursor of myeloblasts is the myeloblast cell. These precursor cells undergo differentiation and maturation processes to become fully functional mature blood cells.